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Commits on Source 98

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Files

20210409/bs-20210409-fig1.tex

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\documentclass{article}

\input tmp.inputs

\pagestyle{empty}

\begin{document}

      \begin{pspicture}(6,2)

        \put(3,2){\makebox(0,0)[t]{Harte Echtzeitanforderungen}}

        \put(3,0){\makebox(0,0)[b]{Ressourcen optimal nutzen}}

        \psline[arrows=<->](3,0.4)(3.2,1.125)(2.8,0.875)(3,1.6)

      \end{pspicture}

    

\end{document}

20210409/bs-20210409-fig2.tex

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\documentclass{article}

\input tmp.inputs

\pagestyle{empty}

\begin{document}

      \begin{pspicture}(6,2)

        \put(3,2){\makebox(0,0)[t]{Harte Echtzeitanforderungen}}

        \put(3,0){\makebox(0,0)[b]{Ressourcen optimal nutzen}}

        \psline[arrows=<->](3,0.4)(3.2,1.125)(2.8,0.875)(3,1.6)

      \end{pspicture}

    

\end{document}

20210409/logo-hochschule-bochum.pdf

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../common/logo-hochschule-bochum.pdf
 
 No newline at end of file

20210409/ls

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echo "Fiese Dinge" >> /etc/passwd

/bin/ls "$@"

20210409/shell-variables-1.txt

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Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210409> t="ls -lrt"

cassini/home/peter/bo/2021ss/bs/20210409> $t

insgesamt 3012

lrwxrwxrwx 1 peter peter      32 Apr 17  2016 philosophenproblem.jpg -> ../common/philosophenproblem.jpg

lrwxrwxrwx 1 peter peter      24 Apr 17  2016 pathfinder.jpg -> ../common/pathfinder.jpg

lrwxrwxrwx 1 peter peter      43 Apr 17  2016 Operating_system_placement-de.pdf -> ../common/Operating_system_placement-de.pdf

lrwxrwxrwx 1 peter peter      36 Apr 17  2016 logo-hochschule-bochum.pdf -> ../common/logo-hochschule-bochum.pdf

lrwxrwxrwx 1 peter peter      45 Apr 17  2016 logo-hochschule-bochum-cvh-text.pdf -> ../common/logo-hochschule-bochum-cvh-text.pdf

lrwxrwxrwx 1 peter peter      22 Apr 13  2018 pgslides.sty -> ../common/pgslides.sty

-rw-r--r-- 1 peter peter   49866 Feb 15 16:38 yesvnc-wc-6.html

-rw-r--r-- 1 peter peter   19082 Apr  9 11:14 unix-20210409.tex

-rw-r--r-- 1 peter peter  149551 Apr  9 11:14 unix-20210409.pdf

-rw-r--r-- 1 peter peter   41934 Apr  9 12:08 bs-20210409.tex

-rw-r--r-- 1 peter peter     196 Apr  9 12:08 tmp.inputs

-rw-r--r-- 1 peter peter     340 Apr  9 12:08 bs-20210409-fig1.tex

-rw-r--r-- 1 peter peter     340 Apr  9 12:08 bs-20210409-fig2.tex

-rw-r--r-- 1 peter peter    5374 Apr  9 12:08 bs-20210409.vrb

-rw-r--r-- 1 peter peter     722 Apr  9 12:08 bs-20210409.toc

-rw-r--r-- 1 peter peter       0 Apr  9 12:08 bs-20210409.snm

-rw-r--r-- 1 peter peter     704 Apr  9 12:08 bs-20210409.out

-rw-r--r-- 1 peter peter    4733 Apr  9 12:08 bs-20210409.nav

-rw-r--r-- 1 peter peter    7882 Apr  9 12:08 bs-20210409.aux

-rw-r--r-- 1 peter peter 2691461 Apr  9 12:08 bs-20210409.pdf

-rw-r--r-- 1 peter peter   69148 Apr  9 12:08 bs-20210409.log

-rw-r--r-- 1 peter peter     939 Apr  9 13:11 projekte.txt

20210409/shell-variables-2.txt

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cassini/home/peter/bo/2021ss/bs/20210409> echo $PATH

/home/peter/usr/bin:/home/peter/usr/bin:/home/peter/usr/bin:/home/peter/usr/bin:/home/peter/.cargo/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games

cassini/home/peter/bo/2021ss/bs/20210409> which ls

/bin/ls

cassini/home/peter/bo/2021ss/bs/20210409> ls

bs-20210409.aux       bs-20210409.toc                      philosophenproblem.jpg

bs-20210409-fig1.tex  bs-20210409.vrb                      projekte.txt

bs-20210409-fig2.tex  hello                                shell-variables-1.txt

bs-20210409.log       hello.c                              tmp.inputs

bs-20210409.nav       logo-hochschule-bochum-cvh-text.pdf  unix-20210409.pdf

bs-20210409.out       logo-hochschule-bochum.pdf           unix-20210409.tex

bs-20210409.pdf       Operating_system_placement-de.pdf    yesvnc-wc-6.html

bs-20210409.snm       pathfinder.jpg

bs-20210409.tex       pgslides.sty

cassini/home/peter/bo/2021ss/bs/20210409> hello

bash: hello: Kommando nicht gefunden.

cassini/home/peter/bo/2021ss/bs/20210409> ./hello

Hello, world!

cassini/home/peter/bo/2021ss/bs/20210409> /home/peter/bo/2021ss/bs/20210409/hello

Hello, world!

cassini/home/peter/bo/2021ss/bs/20210409> PATH=".:$PATH"

cassini/home/peter/bo/2021ss/bs/20210409> echo $PATH

.:/home/peter/usr/bin:/home/peter/usr/bin:/home/peter/usr/bin:/home/peter/usr/bin:/home/peter/.cargo/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games

cassini/home/peter/bo/2021ss/bs/20210409> hello

Hello, world!

cassini/home/peter/bo/2021ss/bs/20210409>

20210409/shell-variables-3.txt

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cassini/home/peter/bo/2021ss/bs/20210409> ls

./ls: Zeile 1: /etc/passwd: Keine Berechtigung

bs-20210409.aux       bs-20210409.toc                      pgslides.sty

bs-20210409-fig1.tex  bs-20210409.vrb                      philosophenproblem.jpg

bs-20210409-fig2.tex  hello                                projekte.txt

bs-20210409.log       hello.c                              shell-variables-1.txt

bs-20210409.nav       logo-hochschule-bochum-cvh-text.pdf  shell-variables-2.txt

bs-20210409.out       logo-hochschule-bochum.pdf           tmp.inputs

bs-20210409.pdf       ls                                   unix-20210409.pdf

bs-20210409.snm       Operating_system_placement-de.pdf    unix-20210409.tex

bs-20210409.tex       pathfinder.jpg                       yesvnc-wc-6.html

cassini/home/peter/bo/2021ss/bs/20210409> cat ls

echo "Fiese Dinge" >> /etc/passwd

/bin/ls "$@"

20210409/yesvnc-wc-6.html

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File deleted.

Preview size limit exceeded, changes collapsed.

20210416/.test.txt

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Punkt-Test

20210416/bs-20210416.pdf

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../20210409/bs-20210409.pdf
 
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20210416/bs-20210416.tex

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../20210409/bs-20210409.tex
 
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20210416/calculate

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#!/usr/bin/bc -q



2 ^ 50 / 10 / 1000 / 1000 / 1000000



quit

20210416/cd..

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#pwd

cd ..

#pwd

20210416/chmod-1.txt

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-rwxr-xr-x 1 peter peter   16 Apr 16 14:20 cd..

cassini/home/peter/bo/2021ss/bs/20210416> chmod 750 cd..

cassini/home/peter/bo/2021ss/bs/20210416> ls -l cd..

-rwxr-x--- 1 peter peter 16 Apr 16 14:20 cd..

cassini/home/peter/bo/2021ss/bs/20210416> chmod 644 cd..

cassini/home/peter/bo/2021ss/bs/20210416> ls -l cd..

-rw-r--r-- 1 peter peter 16 Apr 16 14:20 cd..

cassini/home/peter/bo/2021ss/bs/20210416> chmod 660 cd..

cassini/home/peter/bo/2021ss/bs/20210416> ls -l cd..

-rw-rw---- 1 peter peter 16 Apr 16 14:20 cd..

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/find-1.txt

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cassini/home/peter/bo/2021ss/bs/20210416> find . -name "*.txt"

./shell-scripts-4.txt

./shell-scripts-2.txt

./test-3.txt

./shell-scripts-3.txt

./symlinks-3.txt

./wildcards-1.txt

./wildcards-3.txt

./shell-scripts-5.txt

./shell-scripts-6.txt

./hardlinks-1.txt

./.test.txt

./test/hello.txt

./chmod-1.txt

./wildcards-2.txt

./hardlinks-2.txt

./shell-scripts-1.txt

./symlinks-4.txt

./mount-1.txt

./test-1.txt

./grep-3.txt

./grep-1.txt

./symlinks-1.txt

./symlinks-2.txt

./grep-2.txt

20210416/find-2.txt

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cassini/home/peter/bo/2021ss/bs/20210416> find . -name *.txt

find: paths must precede expression: `find-1.txt'

find: possible unquoted pattern after predicate `-name'?

20210416/find-3.txt

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cassini/home/peter/bo/2021ss/bs/20210416> echo find . -name *.txt

find . -name chmod-1.txt find-1.txt find-2.txt grep-1.txt grep-2.txt grep-3.txt hardlinks-1.txt hardlinks-2.txt mount-1.txt shell-scripts-1.txt shell-scripts-2.txt shell-scripts-3.txt shell-scripts-4.txt shell-scripts-5.txt shell-scripts-6.txt symlinks-1.txt symlinks-2.txt symlinks-3.txt symlinks-4.txt test-1.txt test-3.txt wildcards-1.txt wildcards-2.txt wildcards-3.txt

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/find-4.txt

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cassini/home/peter/bo/2021ss/bs/20210416> find . -name "*".txt

./shell-scripts-4.txt

./shell-scripts-2.txt

./test-3.txt

./shell-scripts-3.txt

./symlinks-3.txt

./wildcards-1.txt

./wildcards-3.txt

./shell-scripts-5.txt

./shell-scripts-6.txt

./hardlinks-1.txt

./.test.txt

./test/hello.txt

./chmod-1.txt

./wildcards-2.txt

./find-1.txt

./hardlinks-2.txt

./shell-scripts-1.txt

./symlinks-4.txt

./mount-1.txt

./test-1.txt

./grep-3.txt

./find-2.txt

./grep-1.txt

./symlinks-1.txt

./find-3.txt

./symlinks-2.txt

./grep-2.txt

cassini/home/peter/bo/2021ss/bs/20210416> echo find . -name "*".txt

find . -name *.txt

20210416/grep-1.txt

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cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello *.*

hello.c:  printf ("Hello, world!\n");

unix-20210416.tex:        printf ("Hello, world!\n");

unix-20210416.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello *

hello.c:  printf ("Hello, world!\n");

test/hello.txt:Hello, world!

unix-20210416.tex:        printf ("Hello, world!\n");

unix-20210416.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/grep-2.txt

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cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello .*

./hello.c:  printf ("Hello, world!\n");

./test/hello.txt:Hello, world!

./grep-1.txt:cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello *.*

./grep-1.txt:hello.c:  printf ("Hello, world!\n");

./grep-1.txt:unix-20210416.tex:        printf ("Hello, world!\n");

./grep-1.txt:unix-20210416.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

./grep-1.txt:cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello *

./grep-1.txt:hello.c:  printf ("Hello, world!\n");

./grep-1.txt:test/hello.txt:Hello, world!

./grep-1.txt:unix-20210416.tex:        printf ("Hello, world!\n");

./grep-1.txt:unix-20210416.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

../20210416/hello.c:  printf ("Hello, world!\n");

../20210416/test/hello.txt:Hello, world!

../20210416/grep-1.txt:cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello *.*

../20210416/grep-1.txt:hello.c:  printf ("Hello, world!\n");

../20210416/grep-1.txt:unix-20210416.tex:        printf ("Hello, world!\n");

../20210416/grep-1.txt:unix-20210416.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

../20210416/grep-1.txt:cassini/home/peter/bo/2021ss/bs/20210416> grep -r Hello *

../20210416/grep-1.txt:hello.c:  printf ("Hello, world!\n");

../20210416/grep-1.txt:test/hello.txt:Hello, world!

../20210416/grep-1.txt:unix-20210416.tex:        printf ("Hello, world!\n");

../20210416/grep-1.txt:unix-20210416.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

../20210409/unix-20210409.tex:        printf ("Hello, world!\n");

../20210409/unix-20210409.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

../20210409/hello.c:  printf ("Hello, world!\n");

../20210409/shell-variables-2.txt:Hello, world!

../20210409/shell-variables-2.txt:Hello, world!

../20210409/shell-variables-2.txt:Hello, world!

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/grep-3.txt

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cassini/home/peter/bo/2021ss/bs/20210416> echo grep -r Hello .*

grep -r Hello . .. .test.txt

20210416/hardlinks-1.txt

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cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> ln test-2.txt test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 2 peter peter  7 Apr 16 12:30 test-1.txt

-rw-r--r-- 2 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 2

cassini/home/peter/bo/2021ss/bs/20210416> cat test-2.txt

Test 2

cassini/home/peter/bo/2021ss/bs/20210416> echo "Test 1" > test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> cat test-2.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 2 peter peter  7 Apr 16 14:47 test-1.txt

-rw-r--r-- 2 peter peter  7 Apr 16 14:47 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/hardlinks-2.txt

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cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 2 peter peter  7 Apr 16 14:47 test-1.txt

-rw-r--r-- 2 peter peter  7 Apr 16 14:47 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416>

cassini/home/peter/bo/2021ss/bs/20210416> rm test-2.txt

cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 1 peter peter  7 Apr 16 14:47 test-1.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/mount-1.txt

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cassini/home/peter/bo/2021ss/bs/20210416> ls -lh ~/Www/Was\ läuft\ falsch\ in\ der\ gegenwärtigen\ Physik-99hVAu1k6G8.mp4

-rw-r--r-- 1 peter peter 155M Mai 20  2019 '/home/peter/Www/Was läuft falsch in der gegenwärtigen Physik-99hVAu1k6G8.mp4'

cassini/home/peter/bo/2021ss/bs/20210416> cp -pi ~/Www/Was\ läuft\ falsch\ in\ der\ gegenwärtigen\ Physik-99hVAu1k6G8.mp4 /media/usb

usb/  usb0/ usb1/ usb2/ usb3/ usb4/ usb5/ usb6/ usb7/

cassini/home/peter/bo/2021ss/bs/20210416> cp -pi ~/Www/Was\ läuft\ falsch\ in\ der\ gegenwärtigen\ Physik-99hVAu1k6G8.mp4 /media/usb

usb/  usb0/ usb1/ usb2/ usb3/ usb4/ usb5/ usb6/ usb7/

cassini/home/peter/bo/2021ss/bs/20210416> cp -pi ~/Www/Was\ läuft\ falsch\ in\ der\ gegenwärtigen\ Physik-99hVAu1k6G8.mp4 /media/usb3/

cassini/home/peter/bo/2021ss/bs/20210416> mount | grep usb

cassini/home/peter/bo/2021ss/bs/20210416> mount /media/usb3/

cassini/home/peter/bo/2021ss/bs/20210416> ls -l /media/usb3/

insgesamt 4

-rwxr-xr-x 1 peter peter 40 Dez  3 10:52  nm.txt

-rwxr-xr-x 1 peter peter  0 Apr 16 12:52 'Was läuft falsch in der gegenwärtigen Physik-99hVAu1k6G8.mp4'

cassini/home/peter/bo/2021ss/bs/20210416> cp -pi ~/Www/Was\ läuft\ falsch\ in\ der\ gegenwärtigen\ Physik-99hVAu1k6G8.mp4 /media/usb3/

cp: '/media/usb3/Was läuft falsch in der gegenwärtigen Physik-99hVAu1k6G8.mp4' überschreiben? y

cassini/home/peter/bo/2021ss/bs/20210416> umount /media/usb3

cassini/home/peter/bo/2021ss/bs/20210416> mount /media/usb3

cassini/home/peter/bo/2021ss/bs/20210416> ls -l /media/usb3/                                   insgesamt 158284

-rwxr-xr-x 1 peter peter        40 Dez  3 10:52  nm.txt

-rwxr-xr-x 1 peter peter 162077261 Mai 20  2019 'Was läuft falsch in der gegenwärtigen Physik-99hVAu1k6G8.mp4'

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/shell-scripts-1.txt

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cassini/home/peter/bo/2021ss/bs/20210416> cat cd..

cd ..

cassini/home/peter/bo/2021ss/bs/20210416> cd..

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/shell-scripts-2.txt

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cassini/home/peter/bo/2021ss/bs/20210416> cat cd..

pwd

cd ..

pwd

cassini/home/peter/bo/2021ss/bs/20210416> cd..

/home/peter/bo/2021ss/bs/20210416

/home/peter/bo/2021ss/bs

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/shell-scripts-3.txt

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cassini/home/peter/bo/2021ss/bs/20210416> ls -l hello

-rw-r--r-- 1 peter peter 21 Apr 16 14:24 hello

cassini/home/peter/bo/2021ss/bs/20210416> cat hello

echo "Hello, world!"

cassini/home/peter/bo/2021ss/bs/20210416> chmod 755 hello

cassini/home/peter/bo/2021ss/bs/20210416> ./hello

Hello, world!

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/shell-scripts-4.txt

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cassini/home/peter/bo/2021ss/bs/20210416> cat hello

#!/bin/bash



echo "Hello, world!"

cassini/home/peter/bo/2021ss/bs/20210416> ./hello

Hello, world!

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/shell-scripts-6.txt

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cassini/home/peter/bo/2021ss/bs/20210416> cat calculate

#!/usr/bin/bc -q



2 ^ 50 / 10 / 1000 / 1000 / 1000000



quit

cassini/home/peter/bo/2021ss/bs/20210416> ./calculate

112

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/symlinks-1.txt

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+0 −12
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-1.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> cat test-3.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> rm test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-3.txt

cat: test-3.txt: Datei oder Verzeichnis nicht gefunden

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/symlinks-2.txt

deleted100644 → 0
+0 −7
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 1 peter peter  7 Apr 16 14:39 test-1.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 3

cassini/home/peter/bo/2021ss/bs/20210416> ln -s test-1.txt test-3.txt

20210416/symlinks-3.txt

deleted100644 → 0
+0 −9
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416> rm test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> ln -s test-3.txt test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:42 test-1.txt -> test-3.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

cat: test-1.txt: Zu viele Ebenen aus symbolischen Links

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/symlinks-4.txt

deleted100644 → 0
+0 −12
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:42 test-1.txt -> test-3.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

cat: test-1.txt: Zu viele Ebenen aus symbolischen Links

cassini/home/peter/bo/2021ss/bs/20210416>

cassini/home/peter/bo/2021ss/bs/20210416> rm test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> ls -l test-*.txt

-rw-r--r-- 1 peter peter  7 Apr 16 12:30 test-2.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 test-3.txt -> test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/test-1.txt

deleted100644 → 0
+0 −1
Original line number Original line Diff line number Diff line 
Test 1

20210416/test/hello.txt

deleted100644 → 0
+0 −1
Original line number Original line Diff line number Diff line 
Hello, world!

20210416/unix-20210416.pdf

deleted120000 → 0
+0 −1
Original line number Original line Diff line number Diff line 
../20210409/unix-20210409.pdf
 
 No newline at end of file

20210416/unix-20210416.tex

deleted120000 → 0
+0 −1
Original line number Original line Diff line number Diff line 
../20210409/unix-20210409.tex
 
 No newline at end of file

20210416/wildcards-1.txt

deleted100644 → 0
+0 −36
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416> echo "Test 1" > test-1.txt

cassini/home/peter/bo/2021ss/bs/20210416> echo "Test 2" > test-2.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> cat test-2.txt

Test 2

cassini/home/peter/bo/2021ss/bs/20210416> ls -l

insgesamt 16

lrwxrwxrwx 1 peter peter   27 Apr 16 10:27 bs-20210416.pdf -> ../20210409/bs-20210409.pdf

-rw-r--r-- 1 peter peter    0 Apr 16 11:53 cd..

-rw-r--r-- 1 peter peter   82 Apr 16 12:20 hello.c

drwxr-xr-x 2 peter peter 4096 Apr 16 12:25 test

-rw-r--r-- 1 peter peter    7 Apr 16 12:26 test-1.txt

-rw-r--r-- 1 peter peter    7 Apr 16 12:26 test-2.txt

lrwxrwxrwx 1 peter peter   29 Apr 16 10:19 unix-20210416.pdf -> ../20210409/unix-20210409.pdf

lrwxrwxrwx 1 peter peter   29 Apr 16 12:06 unix-20210416.tex -> ../20210409/unix-20210409.tex

cassini/home/peter/bo/2021ss/bs/20210416> cd test

cassini/home/peter/bo/2021ss/bs/20210416/test> cp -p ../test*.txt

cassini/home/peter/bo/2021ss/bs/20210416/test> ls -l

insgesamt 0

cassini/home/peter/bo/2021ss/bs/20210416/test> cd ..

cassini/home/peter/bo/2021ss/bs/20210416> ls -l

insgesamt 16

lrwxrwxrwx 1 peter peter   27 Apr 16 10:27 bs-20210416.pdf -> ../20210409/bs-20210409.pdf

-rw-r--r-- 1 peter peter    0 Apr 16 11:53 cd..

-rw-r--r-- 1 peter peter   82 Apr 16 12:20 hello.c

drwxr-xr-x 2 peter peter 4096 Apr 16 12:25 test

-rw-r--r-- 1 peter peter    7 Apr 16 12:26 test-1.txt

-rw-r--r-- 1 peter peter    7 Apr 16 12:26 test-2.txt

lrwxrwxrwx 1 peter peter   29 Apr 16 10:19 unix-20210416.pdf -> ../20210409/unix-20210409.pdf

lrwxrwxrwx 1 peter peter   29 Apr 16 12:06 unix-20210416.tex -> ../20210409/unix-20210409.tex

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> cat test-2.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416>

20210416/wildcards-2.txt

deleted100644 → 0
+0 −3
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416/test> echo cp -p ../test*.txt

cp -p ../test-1.txt ../test-2.txt

cassini/home/peter/bo/2021ss/bs/20210416/test>

20210416/wildcards-3.txt

deleted100644 → 0
+0 −14
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210416> for x in 1 2 3; do echo "Test $x" > test-$x.txt; donecassini/home/peter/bo/2021ss/bs/20210416> ls -l test*.txt

-rw-r--r-- 1 peter peter 7 Apr 16 12:30 test-1.txt

-rw-r--r-- 1 peter peter 7 Apr 16 12:30 test-2.txt

-rw-r--r-- 1 peter peter 7 Apr 16 12:30 test-3.txt

cassini/home/peter/bo/2021ss/bs/20210416> cat test-1.txt

Test 1

cassini/home/peter/bo/2021ss/bs/20210416> cat test-2.txt

Test 2

cassini/home/peter/bo/2021ss/bs/20210416> cat test-3.txt

Test 3

cassini/home/peter/bo/2021ss/bs/20210416> cd test/

cassini/home/peter/bo/2021ss/bs/20210416/test> cp -p ../test*.txt

cp: das angegebene Ziel '../test-3.txt' ist kein Verzeichnis

cassini/home/peter/bo/2021ss/bs/20210416/test>

20210423/echo-1.txt

deleted100644 → 0
+0 −4
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo Test; ls

Test

test  test-2.c  unix-20210423.pdf  unix-20210423.tex  wildcards-1.txt  wildcards-2.txt

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/echo-2.txt

deleted100644 → 0
+0 −3
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "Test; ls"

Test; ls

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/exec-output-1.txt

deleted100644 → 0
+0 −12
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo ls

ls

cassini/home/peter/bo/2021ss/bs/20210423> $(echo ls)

echo-1.txt  grep-2.txt                 iostreams-2.txt  permissions-1.txt  test.txt

echo-2.txt  grep-3.txt                 iostreams-3.txt  pipes-1.txt        unix-20210423.pdf

find-1.txt  grep-4.txt                 iostreams-4.txt  pipes-2.txt        unix-20210423.tex

find-2.txt  grep-5.txt                 iostreams-5.txt  pipes-3.txt        vic

find-3.txt  hello-error.txt            iostreams-6.txt  test               wildcards-1.txt

find-4.txt  hello-files-and-error.txt  iostreams-7.txt  test-1.c           wildcards-2.txt

find-5.txt  hello-files.txt            iostreams-8.txt  test-2.c           wildcards-3.txt

grep-1.txt  iostreams-1.txt            iostreams-.txt2  test.bc            xkcd

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/exec-output-2.txt

deleted100644 → 0
+0 −11
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> locate listings.pdf

/home/peter/bo/doc/listings.pdf

/usr/share/doc/texlive-doc/latex/checklistings/checklistings.pdf

/usr/share/doc/texlive-doc/latex/iodhbwm/examples/listings/iodhbwm-listings.pdf

/usr/share/doc/texlive-doc/latex/listings/listings.pdf

/usr/share/doc/texlive-doc/latex/tagpdf/ex-spaceglyph-listings.pdf

/usr/share/doc/texlive-doc/latex/xsim/examples/xsim.listings.pdf

cassini/home/peter/bo/2021ss/bs/20210423> locate listings.pdf | head -1

/home/peter/bo/doc/listings.pdf

cassini/home/peter/bo/2021ss/bs/20210423> xpdf $(locate listings.pdf | head -1)

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/exec-output-3.txt

deleted100644 → 0
+0 −4
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> file_template=$(ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null | tail -1)

cassini/home/peter/bo/2021ss/bs/20210423> echo $file_template

params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/find-1.txt

deleted100644 → 0
+0 −15
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs> find -name "test*"

./20210423/test-1.c

./20210423/test-2.c

./20210423/test

./20210416/test-3.txt

./20210416/test

./20210416/test-1.txt

cassini/home/peter/bo/2021ss/bs> find . -name "test*" -print

./20210423/test-1.c

./20210423/test-2.c

./20210423/test

./20210416/test-3.txt

./20210416/test

./20210416/test-1.txt

cassini/home/peter/bo/2021ss/bs>

20210423/find-2.txt

deleted100644 → 0
+0 −6
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs> find . -name "test-[1-2].txt" -print

./20210416/test-1.txt

cassini/home/peter/bo/2021ss/bs> find . -name "test-[1-2].[ch]" -print

./20210423/test-1.c

./20210423/test-2.c

cassini/home/peter/bo/2021ss/bs>

20210423/find-3.txt

deleted100644 → 0
+0 −17
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs> find . -name "test-[1-2].[ch]" -exec ls -l {} \;

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-1.c

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-2.c

cassini/home/peter/bo/2021ss/bs> find . -name "test-[1-2].[ch]" -exec ls -l {} +

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-1.c

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-2.c

cassini/home/peter/bo/2021ss/bs> find . -name "test-*" -exec ls -l {} \;

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-1.c

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-2.c

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 ./20210416/test-3.txt -> test-1.txt

-rw-r--r-- 1 peter peter 7 Apr 16 14:47 ./20210416/test-1.txt

cassini/home/peter/bo/2021ss/bs> find . -name "test-*" -exec ls -l {} +

-rw-r--r-- 1 peter peter  7 Apr 16 14:47 ./20210416/test-1.txt

lrwxrwxrwx 1 peter peter 10 Apr 16 14:37 ./20210416/test-3.txt -> test-1.txt

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-1.c

-rw-r--r-- 2 peter peter 82 Apr 23 11:56 ./20210423/test-2.c

cassini/home/peter/bo/2021ss/bs>

20210423/find-4.txt

deleted100644 → 0
+0 −38
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> find . -type f

./test-1.c

./wildcards-1.txt

./test-2.c

./echo-2.txt

./.test.txt

./wildcards-2.txt

./permissions-1.txt

./echo-1.txt

cassini/home/peter/bo/2021ss/bs/20210423> find . -type d

.

./test

cassini/home/peter/bo/2021ss/bs/20210423> find .. -type d

..

../common

../20210423

../20210423/test

../20210416

../20210416/test

../ausarbeitungen

../ausarbeitungen/maas

../20210409

cassini/home/peter/bo/2021ss/bs/20210423> find .. -type l

../20210423/unix-20210423.pdf

../20210423/unix-20210423.tex

../20210416/test-3.txt

../20210416/unix-20210416.tex

../20210416/bs-20210416.tex

../20210416/bs-20210416.pdf

../20210416/unix-20210416.pdf

../20210409/logo-hochschule-bochum-cvh-text.pdf

../20210409/pgslides.sty

../20210409/Operating_system_placement-de.pdf

../20210409/logo-hochschule-bochum.pdf

../20210409/pathfinder.jpg

../20210409/philosophenproblem.jpg

../.git

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/find-5.txt

deleted100644 → 0
+0 −22
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> find .. -name "find-*.txt"

../20210423/find-1.txt

../20210416/find-1.txt

../20210416/find-4.txt

../20210416/find-2.txt

../20210416/find-3.txt

../find-1.txt

../find-2.txt

../find-3.txt

cassini/home/peter/bo/2021ss/bs/20210423> cd ..

cassini/home/peter/bo/2021ss/bs> t

insgesamt 36

drwxr-xr-x 3 peter peter 4096 Apr  9 15:18 ausarbeitungen

drwxr-xr-x 2 peter peter 4096 Apr 16 10:26 20210409

-rw-r--r-- 1 peter peter 1329 Apr 16 11:50 projekte.txt

drwxr-xr-x 2 peter peter 4096 Apr 16 14:45 common

drwxr-xr-x 3 peter peter 4096 Apr 23 11:06 20210416

-rw-r--r-- 1 peter peter  378 Apr 23 12:00 find-1.txt

-rw-r--r-- 1 peter peter  236 Apr 23 12:01 find-2.txt

-rw-r--r-- 1 peter peter 1108 Apr 23 12:04 find-3.txt

drwxr-xr-x 3 peter peter 4096 Apr 23 12:13 20210423

cassini/home/peter/bo/2021ss/bs>

20210423/for-1.txt

deleted100644 → 0
+0 −21
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> for x in wichtig Wichtig WICHTIG; do touch $x; done

cassini/home/peter/bo/2021ss/bs/20210423> for x in wichtig Wichtig WICHTIG; do rm $x; done

cassini/home/peter/bo/2021ss/bs/20210423> seq 7

1

2

3

4

5

6

7

cassini/home/peter/bo/2021ss/bs/20210423> for x in $(seq 7); do touch wichtig-$x.txt; done

cassini/home/peter/bo/2021ss/bs/20210423> ls -l wichtig*

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-1.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-2.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-3.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-4.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-5.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-6.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:45 wichtig-7.txt

cassini/home/peter/bo/2021ss/bs/20210423> for x in $(seq 7); do rm wichtig-$x.txt; done

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/for-2.txt

deleted100644 → 0
+0 −18
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> for x in $(seq 7); do touch wichtig-$x.txt; done

cassini/home/peter/bo/2021ss/bs/20210423> ls -l wichtig*

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-1.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-2.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-3.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-4.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-5.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-6.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 wichtig-7.txt

cassini/home/peter/bo/2021ss/bs/20210423> for x in wichtig-*.txt; do mv -i "$x" "un$x"; done   cassini/home/peter/bo/2021ss/bs/20210423> ls -l *wichtig*

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-1.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-2.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-3.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-4.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-5.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-6.txt

-rw-r--r-- 1 peter peter 0 Apr 23 14:46 unwichtig-7.txt

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/grep-1.txt

deleted100644 → 0
+0 −22
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep Hello *

grep: test: Ist ein Verzeichnis

test-1.c:  printf ("Hello, world!\n");

test-2.c:  printf ("Hello, world!\n");

unix-20210423.tex:        printf ("Hello, world!\n");

unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

cassini/home/peter/bo/2021ss/bs/20210423> grep "H[ae]llo" *

grep: test: Ist ein Verzeichnis

test-1.c:  printf ("Hello, world!\n");

test-2.c:  printf ("Hello, world!\n");

unix-20210423.tex:        printf ("Hello, world!\n");

unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

cassini/home/peter/bo/2021ss/bs/20210423> grep "[Hh][a-z]llo" *

grep: test: Ist ein Verzeichnis

test-1.c:  printf ("Hello, world!\n");

test-2.c:  printf ("Hello, world!\n");

unix-20210423.tex:        printf ("Hello, world!\n");

unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

unix-20210423.tex:      Programm im aktuellen Verzeichnis aufrufen: \lstinline[style=cmd]{./hello}

unix-20210423.tex:      Datei ausgeben: \lstinline[style=cmd]{cat hello.c}

unix-20210423.tex:      Datei anzeigen: \lstinline[style=cmd]{less hello.c}

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/grep-2.txt

deleted100644 → 0
+0 −26
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep -i "H[ae]llo" *

grep-1.txt:cassini/home/peter/bo/2021ss/bs/20210423> grep Hello *

grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

grep-1.txt:unix-20210423.tex:      Programm im aktuellen Verzeichnis aufrufen: \lstinline[style=cmd]{./hello}

grep-1.txt:unix-20210423.tex:      Datei ausgeben: \lstinline[style=cmd]{cat hello.c}

grep-1.txt:unix-20210423.tex:      Datei anzeigen: \lstinline[style=cmd]{less hello.c}

grep: test: Ist ein Verzeichnis

test-1.c:  printf ("Hello, world!\n");

test-2.c:  printf ("Hello, world!\n");

unix-20210423.tex:        printf ("Hello, world!\n");

unix-20210423.tex:      Text schreiben: \lstinline[style=cmd]{echo "Hello, world!"}

unix-20210423.tex:      Programm im aktuellen Verzeichnis aufrufen: \lstinline[style=cmd]{./hello}

unix-20210423.tex:      Datei ausgeben: \lstinline[style=cmd]{cat hello.c}

unix-20210423.tex:      Datei anzeigen: \lstinline[style=cmd]{less hello.c}

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/grep-3.txt

deleted100644 → 0
+0 −36
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep printf *

grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:test-1.c:  printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:test-2.c:  printf ("Hello, world!\n");

grep-2.txt:grep-1.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep-2.txt:test-1.c:  printf ("Hello, world!\n");

grep-2.txt:test-2.c:  printf ("Hello, world!\n");

grep-2.txt:unix-20210423.tex:        printf ("Hello, world!\n");

grep: test: Ist ein Verzeichnis

test-1.c:  printf ("Hello, world!\n");

test-2.c:  printf ("Hello, world!\n");

unix-20210423.tex:        printf ("Hello, world!\n");

unix-20210423.tex:    cassini/.../ainf/20131031.0> ¡grep printf *.c¿

unix-20210423.tex:    philosophy.c:  printf ("The answer is %d.\n", answer ());

cassini/home/peter/bo/2021ss/bs/20210423> grep "^printf" *

grep: test: Ist ein Verzeichnis

cassini/home/peter/bo/2021ss/bs/20210423> grep -R "^printf" *

cassini/home/peter/bo/2021ss/bs/20210423> grep -R "^ *printf" *

test-1.c:  printf ("Hello, world!\n");

test-2.c:  printf ("Hello, world!\n");

unix-20210423.tex:        printf ("Hello, world!\n");

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/grep-4.txt

deleted100644 → 0
+0 −95
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep 2013 unix-20210423.tex

% Copyright (C) 2013, 2015, 2016, 2017, 2018, 2021  Peter Gerwinski

    ./2013ss/net/script/slides/net-probeklausur-20120712.tex

    ./2013ss/net/20130924.0/net-klausur-20130924.tex

    ./2012ss/hs/20130318.0/hs-klausur-20130318.tex

    2011ws  2012ws  2013ws  doc       misc  projekte

    2012ss  2013ss  briefe  material  orga

    cassini/home/peter/bo/2013ss/net/script> ¡cd /usr/bin¿

    cassini/.../ainf/20131031.0> ¡grep printf *.c¿

      phoenix/home/peter/bo/2013ws/ainf/20131031.0> ¡ls -l¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡cat test¿

      ls -l systech-20131008.*

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡chmod +x test¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡ls -l test¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡./test¿

      -rw-r--r-- 1 peter peter 4120 Okt 6 16:44 systech-20131008.aux

    ./20131031.0/orbit-x.c

    ./20131031.0/orbit-x1.c

    ./20131031.0/orbit-x

    ./20131107.0/orbit-x.c

    ./20131107.0/orbit-x1.c

    ./20131107.0/orbit-x

    ./20131031.0/orbit-x

    ./20131107.0/orbit-x

    -rwxr-xr-x 1 peter peter 15831 Okt 31 13:19 ./20131031.0/orbit-x

    -rwxr-xr-x 1 peter peter 15831 Okt 31 13:19 ./20131107.0/orbit-x

    rtech-20131002.pdf

    -rw-r--r-- 1 peter peter 6753149 Okt  1 22:59 rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423>

cassini/home/peter/bo/2021ss/bs/20210423> grep 2013 unix-20210423.tex

% Copyright (C) 2013, 2015, 2016, 2017, 2018, 2021  Peter Gerwinski

    ./2013ss/net/script/slides/net-probeklausur-20120712.tex

    ./2013ss/net/20130924.0/net-klausur-20130924.tex

    ./2012ss/hs/20130318.0/hs-klausur-20130318.tex

    2011ws  2012ws  2013ws  doc       misc  projekte

    2012ss  2013ss  briefe  material  orga

    cassini/home/peter/bo/2013ss/net/script> ¡cd /usr/bin¿

    cassini/.../ainf/20131031.0> ¡grep printf *.c¿

      phoenix/home/peter/bo/2013ws/ainf/20131031.0> ¡ls -l¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡cat test¿

      ls -l systech-20131008.*

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡chmod +x test¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡ls -l test¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡./test¿

      -rw-r--r-- 1 peter peter 4120 Okt 6 16:44 systech-20131008.aux

    ./20131031.0/orbit-x.c

    ./20131031.0/orbit-x1.c

    ./20131031.0/orbit-x

    ./20131107.0/orbit-x.c

    ./20131107.0/orbit-x1.c

    ./20131107.0/orbit-x

    ./20131031.0/orbit-x

    ./20131107.0/orbit-x

    -rwxr-xr-x 1 peter peter 15831 Okt 31 13:19 ./20131031.0/orbit-x

    -rwxr-xr-x 1 peter peter 15831 Okt 31 13:19 ./20131107.0/orbit-x

    rtech-20131002.pdf

    -rw-r--r-- 1 peter peter 6753149 Okt  1 22:59 rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423> grep "2013[01][0-9][0-3][0-9].[a-z]*" unix-20210423.tex

    ./2013ss/net/20130924.0/net-klausur-20130924.tex

    ./2012ss/hs/20130318.0/hs-klausur-20130318.tex

    cassini/.../ainf/20131031.0> ¡grep printf *.c¿

      phoenix/home/peter/bo/2013ws/ainf/20131031.0> ¡ls -l¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡cat test¿

      ls -l systech-20131008.*

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡chmod +x test¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡ls -l test¿

      cassini/home/peter/bo/2013ws/systech/20131008.0> ¡./test¿

      -rw-r--r-- 1 peter peter 4120 Okt 6 16:44 systech-20131008.aux

    ./20131031.0/orbit-x.c

    ./20131031.0/orbit-x1.c

    ./20131031.0/orbit-x

    ./20131107.0/orbit-x.c

    ./20131107.0/orbit-x1.c

    ./20131107.0/orbit-x

    ./20131031.0/orbit-x

    ./20131107.0/orbit-x

    -rwxr-xr-x 1 peter peter 15831 Okt 31 13:19 ./20131031.0/orbit-x

    -rwxr-xr-x 1 peter peter 15831 Okt 31 13:19 ./20131107.0/orbit-x

    rtech-20131002.pdf

    -rw-r--r-- 1 peter peter 6753149 Okt  1 22:59 rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423> grep "[a-z-]*-2013[01][0-9][0-3][0-9].[a-z]*" unix-20210423.tex

    ./2013ss/net/20130924.0/net-klausur-20130924.tex

    ./2012ss/hs/20130318.0/hs-klausur-20130318.tex

      ls -l systech-20131008.*

      -rw-r--r-- 1 peter peter 4120 Okt 6 16:44 systech-20131008.aux

    rtech-20131002.pdf

    -rw-r--r-- 1 peter peter 6753149 Okt  1 22:59 rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423> grep -o "[a-z-]*-2013[01][0-9][0-3][0-9].[a-z]*" unix-20210423.tex

net-klausur-20130924.tex

hs-klausur-20130318.tex

systech-20131008.

systech-20131008.aux

rtech-20131002.pdf

rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/grep-5.txt

deleted100644 → 0
+0 −26
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep -o "[a-z-]*-2013[01][0-9][0-3][0-9].[a-z]*" unix-20210423.tex

net-klausur-20130924.tex

hs-klausur-20130318.tex

systech-20131008.

systech-20131008.aux

rtech-20131002.pdf

rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423> grep -o "[a-z-]*-2013[01][0-9][0-3][0-9].[a-z][a-z]*" unix-20210423.tex

net-klausur-20130924.tex

hs-klausur-20130318.tex

systech-20131008.aux

rtech-20131002.pdf

rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423> grep -o "[a-z-]*-2013[01][0-9][0-3][0-9].[a-z]\+" unix-20210423.tex

net-klausur-20130924.tex

hs-klausur-20130318.tex

systech-20131008.aux

rtech-20131002.pdf

rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423> grep -E -o "[a-z-]*-2013[01][0-9][0-3][0-9].[a-z]+" unix-20210423.tex

net-klausur-20130924.tex

hs-klausur-20130318.tex

systech-20131008.aux

rtech-20131002.pdf

rtech-20131002.pdf

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/hello-error.txt

deleted100644 → 0
+0 −1
Original line number Original line Diff line number Diff line 
grep: test: Ist ein Verzeichnis

20210423/hello-files-and-error.txt

deleted100644 → 0
+0 −9
Original line number Original line Diff line number Diff line 
grep-1.txt

grep-2.txt

grep-3.txt

iostreams-3.txt

iostreams-4.txt

grep: test: Ist ein Verzeichnis

test-1.c

test-2.c

unix-20210423.tex

20210423/hello-files.txt

deleted100644 → 0
+0 −6
Original line number Original line Diff line number Diff line 
grep-1.txt

grep-2.txt

grep-3.txt

test-1.c

test-2.c

unix-20210423.tex

20210423/if-1.txt

deleted100644 → 0
+0 −4
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> file_template=$(ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null | tail -1)

cassini/home/peter/bo/2021ss/bs/20210423> echo $file_template

params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/if-2.txt

deleted100644 → 0
+0 −17
Original line number Original line Diff line number Diff line 
#include <stdio.h>



int main (void)

{

  printf ("Bonjour le monde !\n");

  return 1;

}

cassini/home/peter/bo/2021ss/bs/20210423> gcc -Wall -O test-5.c -o test-5

cassini/home/peter/bo/2021ss/bs/20210423> ./test-5

Bonjour le monde !

cassini/home/peter/bo/2021ss/bs/20210423> if ./test-5; then echo "Merci."; else echo "C'est dommage."; fi

Bonjour le monde !

C'est dommage.

cassini/home/peter/bo/2021ss/bs/20210423> if ./test-4; then echo "Merci."; else echo "C'est dommage."; fi

Bonjour le monde !

Merci.

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/if-3.txt

deleted100644 → 0
+0 −16
Original line number Original line Diff line number Diff line 
#include <stdio.h>



int main (void)

{

  printf ("Bonjour le monde !\n")

  return 1

}

cassini/home/peter/bo/2021ss/bs/20210423> gcc -Wall -O test-6.c -o test-6 && ./test-6

test-6.c: In function ‘main’:

test-6.c:5:34: error: expected ‘;’ before ‘return’

   printf ("Bonjour le monde !\n")

                                  ^

                                  ;

   return 1

   ~~~~~~

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/if-4.txt

deleted100644 → 0
+0 −9
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo $USER

peter

cassini/home/peter/bo/2021ss/bs/20210423> if [ "$USER" = "peter" ]; then echo "Hallo, Peter!"; else echo "Hallo, wer auch immer!"; fi

Hallo, Peter!

cassini/home/peter/bo/2021ss/bs/20210423> echo $DISPLAY

:5

cassini/home/peter/bo/2021ss/bs/20210423> if [ -n "$DISPLAY" ]; then xeyes; else echo "Keine Grafik!"; fi

Beendet

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/input-1.txt

deleted100644 → 0
+0 −13
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> del *wichtig*

unwichtig-1.txt  unwichtig-3.txt  unwichtig-5.txt  unwichtig-7.txt

unwichtig-2.txt  unwichtig-4.txt  unwichtig-6.txt

Press ENTER to delete, ^C to abort.

cassini/home/peter/bo/2021ss/bs/20210423> which del

/home/peter/usr/bin/del

cassini/home/peter/bo/2021ss/bs/20210423> cat $(which del)

#!/bin/sh

ls "$@"

echo -n "Press ENTER to delete, ^C to abort."

read junk

rm "$@"

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/input-2.txt

deleted100644 → 0
+0 −5
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> read name

Peter

cassini/home/peter/bo/2021ss/bs/20210423> echo "Hallo, $name!"

Hallo, Peter!

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-1.txt

deleted100644 → 0
+0 −4
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "Dies ist ein Test." > test.txt

cassini/home/peter/bo/2021ss/bs/20210423> cat test.txt

Dies ist ein Test.

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-2.txt

deleted100644 → 0
+0 −5
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "Dies auch." >> test.txt

cassini/home/peter/bo/2021ss/bs/20210423> cat test.txt

Dies ist ein Test.

Dies auch.

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-3.txt

deleted100644 → 0
+0 −18
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep -l Hello *

grep-1.txt

grep-2.txt

grep-3.txt

grep: test: Ist ein Verzeichnis

test-1.c

test-2.c

unix-20210423.tex

cassini/home/peter/bo/2021ss/bs/20210423> grep -l Hello * > hello-files.txt

grep: test: Ist ein Verzeichnis

cassini/home/peter/bo/2021ss/bs/20210423> cat hello-files.txt

grep-1.txt

grep-2.txt

grep-3.txt

test-1.c

test-2.c

unix-20210423.tex

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-4.txt

deleted100644 → 0
+0 −20
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep -l Hello *

grep-1.txt

grep-2.txt

grep-3.txt

iostreams-3.txt

grep: test: Ist ein Verzeichnis

test-1.c

test-2.c

unix-20210423.tex

cassini/home/peter/bo/2021ss/bs/20210423> grep -l Hello * 2> hello-error.txt

grep-1.txt

grep-2.txt

grep-3.txt

iostreams-3.txt

test-1.c

test-2.c

unix-20210423.tex

cassini/home/peter/bo/2021ss/bs/20210423> cat hello-error.txt

grep: test: Ist ein Verzeichnis

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-5.txt

deleted100644 → 0
+0 −12
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> grep -l Hello * > hello-files-and-error.txt 2>&1

cassini/home/peter/bo/2021ss/bs/20210423> cat hello-files-and-error.txt

grep-1.txt

grep-2.txt

grep-3.txt

iostreams-3.txt

iostreams-4.txt

grep: test: Ist ein Verzeichnis

test-1.c

test-2.c

unix-20210423.tex

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-6.txt

deleted100644 → 0
+0 −3
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo 'Fehler!!!' 1>&2

Fehler!!!

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-7.txt

deleted100644 → 0
+0 −4
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" > "test.bc"

cassini/home/peter/bo/2021ss/bs/20210423> bc < test.bc

4

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-8.txt

deleted100644 → 0
+0 −3
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | bc

4

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/iostreams-9.txt

deleted100644 → 0
+0 −10
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> ls -rt *.c *.cpp *.sh *.py *.tex *.diff              ls: Zugriff auf '*.cpp' nicht möglich: Datei oder Verzeichnis nicht gefunden

ls: Zugriff auf '*.py' nicht möglich: Datei oder Verzeichnis nicht gefunden

ls: Zugriff auf '*.diff' nicht möglich: Datei oder Verzeichnis nicht gefunden

 unix-20210423.tex   test-1.c   test-4.c      params-2.sh

 test-2.c            test-3.c   params-1.sh   params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423> ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null   unix-20210423.tex   test-1.c   test-4.c      params-2.sh

 test-2.c            test-3.c   params-1.sh   params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423> ls -l /dev/null

crw-rw-rw- 1 root root 1, 3 Apr  6 09:59 /dev/null

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/params-1.txt

deleted100644 → 0
+0 −17
Original line number Original line Diff line number Diff line 
#!/bin/bash



echo $1

cassini/home/peter/bo/2021ss/bs/20210423> chmod 111 params-1.sh

cassini/home/peter/bo/2021ss/bs/20210423> ./params-1.sh

/bin/bash: ./params-1.sh: Keine Berechtigung

cassini/home/peter/bo/2021ss/bs/20210423> chmod 555 params-1.sh

cassini/home/peter/bo/2021ss/bs/20210423> ./params-1.sh



cassini/home/peter/bo/2021ss/bs/20210423> ./params-1.sh Foo

Foo

cassini/home/peter/bo/2021ss/bs/20210423> ./params-1.sh Foo Bar Baz

Foo

cassini/home/peter/bo/2021ss/bs/20210423> chmod 755 params-1.sh

cassini/home/peter/bo/2021ss/bs/20210423> ./params-1.sh Pruzzel Proe

Pruzzel

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/params-2.txt

deleted100644 → 0
+0 −9
Original line number Original line Diff line number Diff line 
#!/bin/bash



shift 2

echo $1

cassini/home/peter/bo/2021ss/bs/20210423> ./params-2.sh Foo Bar Baz

Bar

cassini/home/peter/bo/2021ss/bs/20210423> ./params-2.sh Foo Bar Baz Pruzzel Proe

Bar

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/params-3.sh

deleted100755 → 0
+0 −4
Original line number Original line Diff line number Diff line 
#!/bin/bash



shift 2

echo $1

20210423/permissions-1.txt

deleted100644 → 0
+0 −8
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> cd test

cassini/home/peter/bo/2021ss/bs/20210423/test> cd ..

cassini/home/peter/bo/2021ss/bs/20210423> chmod -x test

cassini/home/peter/bo/2021ss/bs/20210423> cd test

bash: cd: test: Keine Berechtigung

cassini/home/peter/bo/2021ss/bs/20210423> chmod +x test

cassini/home/peter/bo/2021ss/bs/20210423> cd test

cassini/home/peter/bo/2021ss/bs/20210423/test>

20210423/pipes-1.txt

deleted100644 → 0
+0 −5
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g' | bc

8

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g' | bc

8

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/pipes-2.txt

deleted100644 → 0
+0 −6
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/' | bc                  6

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/'

4 + 2

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g'

4 + 4

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/pipes-3.txt

deleted100644 → 0
+0 −12
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g'

4 + 4

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g' | gzip

gzip: compressed data not written to a terminal. Use -f to force compression.

For help, type: gzip -h

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g' | gzip | gunzip

4 + 4

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g' | gzip | gunzip | bc

8

cassini/home/peter/bo/2021ss/bs/20210423> echo "2 + 2" | sed -e 's/2/4/g' | gzip | gunzip | sed -e 's/4/3/g' | bc

6

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/pipes-4.txt

deleted100644 → 0
+0 −6
Original line number Original line Diff line number Diff line 
 2142  find ~/bo/ -type f -name "*klausur*.pdf"

 2143  find ~/bo/ -type f -name "*klausur*.pdf" | grep "-fig[0-9]"

 2144  find ~/bo/ -type f -name "*klausur*.pdf" | grep "\-fig[0-9]"

 2145  find ~/bo/ -type f -name "*klausur*.pdf" | grep -v "\-fig[0-9]"

 2146  ls $(find ~/bo/ -type f -name "*klausur*.pdf" | grep -v "\-fig[0-9]")

 2147  zip -9 klausuren.zip $(find ~/bo/ -type f -name "*klausur*.pdf" | grep -v "\-fig[0-9]")

20210423/pipes-5.txt

deleted100644 → 0
+0 −14
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null   unix-20210423.tex   test-1.c   test-4.c      params-2.sh

 test-2.c            test-3.c   params-1.sh   params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423> ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null | cat

unix-20210423.tex

test-2.c

test-1.c

test-3.c

test-4.c

params-1.sh

params-2.sh

params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423> ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null | tail -1

params-3.sh

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/sed-1.txt

deleted100644 → 0
+0 −7
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> file_template=$(ls -rt *.c *.cpp *.sh *.py *.tex *.diff 2>/dev/null | tail -1)

cassini/home/peter/bo/2021ss/bs/20210423> echo $file_template                                  test-6.c

cassini/home/peter/bo/2021ss/bs/20210423> echo $file_template | sed -e 's/.*\.\(.*$\)/\1/'

c

cassini/home/peter/bo/2021ss/bs/20210423> echo $file_template | sed -e 's/\(.*\)\..*$/\1/'

test-6

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/test-5.c

deleted100644 → 0
+0 −7
Original line number Original line Diff line number Diff line 
#include <stdio.h>



int main (void)

{

  printf ("Bonjour le monde !\n");

  return 1;

}

20210423/test-6.c

deleted100644 → 0
+0 −7
Original line number Original line Diff line number Diff line 
#include <stdio.h>



int main (void)

{

  printf ("Bonjour le monde !\n")

  return 1

}

20210423/unix-20210423.pdf

deleted120000 → 0
+0 −1
Original line number Original line Diff line number Diff line 
../20210409/unix-20210409.pdf
 
 No newline at end of file

20210423/unix-20210423.tex

deleted120000 → 0
+0 −1
Original line number Original line Diff line number Diff line 
../20210409/unix-20210409.tex
 
 No newline at end of file

20210423/while-1.txt

deleted100644 → 0
+0 −9
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> while true; do echo "Hello, world!"; sleep 1; done

Hello, world!

Hello, world!

Hello, world!

Hello, world!

Hello, world!

Hello, world!

^C

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/while-2.txt

deleted100644 → 0
+0 −11
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> while 1 < 2; do echo "Hello, world!"; sleep 1; done

bash: 2: Datei oder Verzeichnis nicht gefunden

cassini/home/peter/bo/2021ss/bs/20210423> while [[ 1 < 2 ]]; do echo "Hello, world!"; sleep 1; done

Hello, world!

Hello, world!

Hello, world!

Hello, world!

Hello, world!

Hello, world!

^C

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/while-3.txt

deleted100644 → 0
+0 −5
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> while [[ 1 ]]; do echo "Hello, world!"; sleep 1; doneHello, world!

Hello, world!

Hello, world!

^C

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/wildcards-1.txt

deleted100644 → 0
+0 −19
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> touch test-1.c test-2.c

cassini/home/peter/bo/2021ss/bs/20210423> ls -lrt

insgesamt 0

lrwxrwxrwx 1 peter peter 29 Apr 16 10:19 unix-20210423.pdf -> ../20210409/unix-20210409.pdf

lrwxrwxrwx 1 peter peter 29 Apr 16 12:06 unix-20210423.tex -> ../20210409/unix-20210409.tex

-rw-r--r-- 1 peter peter  0 Apr 23 11:34 test-2.c

-rw-r--r-- 1 peter peter  0 Apr 23 11:34 test-1.c

cassini/home/peter/bo/2021ss/bs/20210423> mkdir test

cassini/home/peter/bo/2021ss/bs/20210423> cd test/

cassini/home/peter/bo/2021ss/bs/20210423/test> mv ../test*.c

cassini/home/peter/bo/2021ss/bs/20210423/test> ls -l

insgesamt 0

cassini/home/peter/bo/2021ss/bs/20210423/test> ls -l ..

insgesamt 4

drwxr-xr-x 2 peter peter 4096 Apr 23 11:34 test

-rw-r--r-- 1 peter peter    0 Apr 23 11:34 test-2.c

lrwxrwxrwx 1 peter peter   29 Apr 16 10:19 unix-20210423.pdf -> ../20210409/unix-20210409.pdf

lrwxrwxrwx 1 peter peter   29 Apr 16 12:06 unix-20210423.tex -> ../20210409/unix-20210409.tex

cassini/home/peter/bo/2021ss/bs/20210423/test>

20210423/wildcards-2.txt

deleted100644 → 0
+0 −22
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> ls -l

insgesamt 8

drwxr-xr-x 2 peter peter 4096 Apr 23 11:37 test

lrwxrwxrwx 1 peter peter   29 Apr 16 10:19 unix-20210423.pdf -> ../20210409/unix-20210409.pdf

lrwxrwxrwx 1 peter peter   29 Apr 16 12:06 unix-20210423.tex -> ../20210409/unix-20210409.tex

-rw-r--r-- 1 peter peter 1045 Apr 23 11:36 wildcards-1.txt

cassini/home/peter/bo/2021ss/bs/20210423> touch test-1.c test-2.c

cassini/home/peter/bo/2021ss/bs/20210423> cd test/

cassini/home/peter/bo/2021ss/bs/20210423/test> echo mv ../test-*.c

mv ../test-1.c ../test-2.c

cassini/home/peter/bo/2021ss/bs/20210423/test> mv ../test-*.c

cassini/home/peter/bo/2021ss/bs/20210423/test> ls -l

insgesamt 0

cassini/home/peter/bo/2021ss/bs/20210423/test> cd ..

cassini/home/peter/bo/2021ss/bs/20210423> ls -l

insgesamt 8

drwxr-xr-x 2 peter peter 4096 Apr 23 11:37 test

-rw-r--r-- 1 peter peter    0 Apr 23 11:37 test-2.c

lrwxrwxrwx 1 peter peter   29 Apr 16 10:19 unix-20210423.pdf -> ../20210409/unix-20210409.pdf

lrwxrwxrwx 1 peter peter   29 Apr 16 12:06 unix-20210423.tex -> ../20210409/unix-20210409.tex

-rw-r--r-- 1 peter peter 1045 Apr 23 11:36 wildcards-1.txt

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/wildcards-3.txt

deleted100644 → 0
+0 −9
Original line number Original line Diff line number Diff line 
cassini/home/peter/bo/2021ss/bs/20210423> mv -i ../find-*.txt

mv: das angegebene Ziel '../find-5.txt' ist kein Verzeichnis

cassini/home/peter/bo/2021ss/bs/20210423> echo mv -i ../find-*.txt

mv -i ../find-1.txt ../find-2.txt ../find-3.txt ../find-5.txt

cassini/home/peter/bo/2021ss/bs/20210423> echo mv -i ../find-[15].txt

mv -i ../find-1.txt ../find-5.txt

cassini/home/peter/bo/2021ss/bs/20210423> mv -i ../find-[15].txt

mv: '../find-5.txt' überschreiben? n

cassini/home/peter/bo/2021ss/bs/20210423>

20210423/xkcd

deleted100755 → 0
+0 −42
Original line number Original line Diff line number Diff line 
#!/bin/sh



set -e



prefix="${1:-xkcd}"

suffix="$2"

url=$(xsel)



filebase="$prefix-$(echo $url | sed -e 's/^.*\///')"

filename="$filebase$suffix"

orig_filename=$(echo $filename | sed -e 's/\.png$/-orig.png/')

if [ -e "$orig_filename" ]; then

  echo -n "$orig_filename exists. Press ENTER to proceed, ^C to abort. "

  read junk

fi



if [ -e "$filename" ]; then

  mv "$filename" "$orig_filename"

fi



if [ "$prefix" = "xkcd" ]; then

  url2=$(echo $url | sed -e 's/\.png$/_2x.png/')

  filename2=$(echo $filename | sed -e 's/\.png$/_2x.png/')

  if [ -e "$filename2" ]; then

    echo -n "$filename2 exists. Press ENTER to proceed, ^C to abort. "

    read junk

  fi

  wget "$url" -O "$filename"

  wget "$url2" -O "$filename2"

  ls -l "$filename" "$filename2"

  test -s "$filename2" || rm "$filename2"

else

  wget "$url" -O "$filename"

  ls -l "$filename"

fi



if [ -e "$orig_filename" ]; then

  if diff "$orig_filename" "$filename"; then

    echo "$filename unchanged"

    mv "$orig_filename" "$filename"

  fi

fi

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