20231019/streams-04.txt

-cassini/home/peter/bo/2023ws/dbs/20231019> ls -l *.bc
--rwxr-xr-x 1 peter peter 11 19. Okt 12:10 test-01.bc
--rwxr-xr-x 1 peter peter 26 19. Okt 12:11 test-02.bc
-cassini/home/peter/bo/2023ws/dbs/20231019> cat test-01.bc
-2 + 2
-quit
-cassini/home/peter/bo/2023ws/dbs/20231019> bc < test-01.bc
-4
-cassini/home/peter/bo/2023ws/dbs/20231019>

20231019/streams-05.txt

-cassini/home/peter/bo/2023ws/dbs/20231019> echo "2 + 2"
-2 + 2
-cassini/home/peter/bo/2023ws/dbs/20231019> echo "2 + 2" | bc
-4
-cassini/home/peter/bo/2023ws/dbs/20231019>

20231019/test-03.txt

-test-01.txt
\ No newline at end of file

20231019/test-05.txt

-Dies ist noch ein Test.
-Dies ist schon wieder ein Test.

20231019/wireshark-01.txt

-cassini/home/peter/bo/2023ws/dbs/20231019> wireshark
-cassini/home/peter/bo/2023ws/dbs/20231019> which wireshark
-/usr/bin/wireshark
-cassini/home/peter/bo/2023ws/dbs/20231019> ls -l /usr/bin/wireshark
--rwxr-xr-x 1 root root 9511896 14. Jun 16:15 /usr/bin/wireshark
-cassini/home/peter/bo/2023ws/dbs/20231019> ls -l /usr/bin/dumpcap
--rwxr-xr-- 1 root wireshark 125536 14. Jun 16:15 /usr/bin/dumpcap
-cassini/home/peter/bo/2023ws/dbs/20231019> id
-uid=1501(peter) gid=1501(peter) Gruppen=1501(peter),20(dialout),24(cdrom),25(floppy),29(audio),44(video),46(plugdev),50(staff),104(scanner),113(netdev),114(bluetooth),120(fuse),141(docker),146(air-quality-sensor),147(wireshark)
-cassini/home/peter/bo/2023ws/dbs/20231019>

20231026/hello-01

-echo "Hello, world!"

20231026/hello-02

-#!/bin/bash
-
-echo -n "Wie heißen Sie? "
-read name
-echo "Hallo, $name!"

20231026/loops-02.txt

-cassini/home/peter/bo/2023ws/dbs> for x in 20231019 20231026; do ( cd $x; pdflatex dbs-$x.tex ); done

20231026/mailbox.txt

-From elon.musk@hs-bochum.de Thu Oct 26 12:32:51 2023
-Return-path: <elon.musk@hs-bochum.de>
-Envelope-to: peter@phoenix.intern
-Delivery-date: Thu, 26 Oct 2023 12:32:51 +0200
-Received: from [127.0.0.1] (helo=m31.gerwinski.de)
-	by cassini with esmtp (Exim 4.96)
-	(envelope-from <elon.musk@hs-bochum.de>)
-	id 1qvxfW-000Yl7-1s
-	for peter@phoenix.intern;
-	Thu, 26 Oct 2023 12:32:51 +0200
-Received: from [195.37.15.82] (helo=cassini)
-	by m31.gerwinski.de with smtp (Exim 4.94.2)
-	(envelope-from <elon.musk@hs-bochum.de>)
-	id 1qvxeT-006C4R-Pr
-	for peter@gerwinski.de; Thu, 26 Oct 2023 12:32:51 +0200
-From: Elon Musk <elon@musk.com>
-To: Bill Gates <gates@microsoft.com>
-Subject: New Job
-Message-Id: <E1qvxfW-000Yl7-1s@cassini>
-Date: Thu, 26 Oct 2023 12:32:51 +0200
-Content-Length: 43
-Lines: 1
-
-Hi, Bill! I'm now at hs-bochum.de! B-) CU!
-
-From peter.gerwinski@hs-bochum.de Thu Oct 26 12:27:58 2023
-Return-path: <peter.gerwinski@hs-bochum.de>
-Envelope-to: peter@phoenix.intern
-Delivery-date: Thu, 26 Oct 2023 12:27:58 +0200
-Received: from [127.0.0.1] (helo=m31.gerwinski.de)
-	by cassini with esmtp (Exim 4.96)
-	(envelope-from <peter.gerwinski@hs-bochum.de>)
-	id 1qvxam-000YXM-3D
-	for peter@phoenix.intern;
-	Thu, 26 Oct 2023 12:27:58 +0200
-Received: from [195.37.15.82] (helo=cassini)
-	by m31.gerwinski.de with smtp (Exim 4.94.2)
-	(envelope-from <peter.gerwinski@hs-bochum.de>)
-	id 1qvxaO-006BmH-FT
-	for peter@gerwinski.de; Thu, 26 Oct 2023 12:27:57 +0200
-Subject: Test
-Message-Id: <E1qvxam-000YXM-3D@cassini>
-From: peter.gerwinski@hs-bochum.de
-Date: Thu, 26 Oct 2023 12:27:58 +0200
-Content-Length: 45
-Lines: 5
-
-Hallo,
-
-dies ist ein Test.
-
-Schöne Grüße!
-

20231026/nc-01.txt

-cassini/home/peter> nc -p 1234 -l
-Hallo?
-Hier auch hallo! :-)
-Ah. Schön, Dich zu treffen.
-Ganz meinerseits.
-Tschüs!
-Tschüs!
-^C
-cassini/home/peter>
-
-8< ---------------------------------------------------------------------
-
-cassini/home/peter/bo/2023ws/dbs/20231026> nc 127.0.0.1 1234
-Hallo?
-Hier auch hallo! :-)
-Ah. Schön, Dich zu treffen.
-Ganz meinerseits.
-Tschüs!
-Tschüs!
-cassini/home/peter/bo/2023ws/dbs/20231026> 

20231026/nc-02.txt

-cassini/home/peter/bo/2023ws/dbs/20231026> cat hello-01
-echo "Hello, world!"
-cassini/home/peter/bo/2023ws/dbs/20231026> chmod +x hello-01
-cassini/home/peter/bo/2023ws/dbs/20231026> nc -p 1234 -l -c ./hello-01
-cassini/home/peter/bo/2023ws/dbs/20231026> 
-
-8< ---------------------------------------------------------------------
-
-cassini/home/peter> nc localhost 1234
-Hello, world!
-cassini/home/peter> 

20231026/nc-03.txt

-cassini/home/peter/bo/2023ws/dbs/20231026> cat hello-02
-#!/bin/bash
-
-echo -n "Wie heißen Sie? "
-read name
-echo "Hallo, $name!"
-cassini/home/peter/bo/2023ws/dbs/20231026> nc -p 1234 -l -c ./hello-02
-cassini/home/peter/bo/2023ws/dbs/20231026> 
-
-8< ---------------------------------------------------------------------
-
-cassini/home/peter> nc localhost 1234
-Wie heißen Sie? Peter
-Hallo, Peter!
-Sie haben Post in /var/mail/peter.
-cassini/home/peter> 

20231026/sed-01.txt

-cassini/home/peter/bo/2023ws/dbs/20231019> grep SKripten *.tex
-dbs-20231019.tex:      Parameter in Shell-SKripten:
-cassini/home/peter/bo/2023ws/dbs/20231019> sed -i 's/SKripten/Skripten/' *.tex
-cassini/home/peter/bo/2023ws/dbs/20231019> cd ../20231026
-cassini/home/peter/bo/2023ws/dbs/20231026> sed -i 's/SKripten/Skripten/' *.tex
-cassini/home/peter/bo/2023ws/dbs/20231026>

20231026/smtp-01.txt

-cassini/home/peter/bo/2023ws/dbs/20231026> nc 88.198.170.60 25
-220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 26 Oct 2023 12:26:53 +0200
-HELO cassini
-250 mx1.gerwinski.de Hello cassini [195.37.15.82]
-MAIL FROM: <peter.gerwinski@hs-bochum.de>
-250 OK
-RCPT TO: <peter@gerwinski.de>
-250 Accepted
-DATA
-354 Enter message, ending with "." on a line by itself
-Subject: Test
-
-Hallo,
-
-dies ist ein Test.
-
-Schöne Grüße!
-.
-250 OK id=1qvxaO-006BmH-FT
-QUIT
-221 mx1.gerwinski.de closing connection
-cassini/home/peter/bo/2023ws/dbs/20231026>

20231026/smtp-02.txt

-cassini/home/peter/bo/2023ws/dbs/20231026> nc 88.198.170.60 25
-220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 26 Oct 2023 12:30:18 +0200
-HELO cassini
-250 mx1.gerwinski.de Hello cassini [195.37.15.82]
-MAIL FROM: <elon.musk@hs-bochum.de>
-250 OK
-RCPT TO: <peter@gerwinski.de>
-451-195.37.15.82 is not yet authorized to deliver mail from
-451 <elon.musk@hs-bochum.de> to <peter@gerwinski.de>. Please try later.
-MAIL FROM: <elon.musk@hs-bochum.de>
-503 sender already given
-RCPT TO: <peter@gerwinski.de>
-250 Accepted
-DATA
-354 Enter message, ending with "." on a line by itself
-From: Elon Musk <elon@musk.com>
-To: Bill Gates <gates@microsoft.com>
-Subject: New Job
-
-Hi, Bill! I'm now at hs-bochum.de! B-) CU!
-.
-250 OK id=1qvxeT-006C4R-Pr
-QUIT
-221 mx1.gerwinski.de closing connection
-cassini/home/peter/bo/2023ws/dbs/20231026>

20231026/x-01

-#!/bin/ls -l

20231026/x-02

-#!/bin/ls -l dbs-20231026.tex

20231102/Ethernetpaket.pdf

-../common/Ethernetpaket.pdf
\ No newline at end of file

20231102/hello-01

-#!/bin/bash
-
-echo "Hello, world!"