Aufgabentext und Beispiele 18.10.2023

20231018.p0/dbs-20231018.txt

+Aufgabe: Schreiben Sie ein Shell-Skript, das aus einer selbst erstellten
+Textdatei (z.B. CSV) Daten extrahiert. Welche Daten, soll per Parameter
+angegeben werden.
+
+Beispiel: Tabelle
+
+  ID  Name       Tierart
+  ----------------------
+  01  Wuffi      Kater
+  02  Maunzi     Dt. Schäferhund
+  03  Mausi      Afr. Elefant
+  04  Gargantua  Spitzmaus
+
+  $ ./programmchen 01 Tierart
+  Kater
+  $ ./programmchen 03 Name
+  Mausi
+
+Hinweise:
+ - man grep
+ - man cut

20231018.p0/hello-01.sh

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

20231018.p0/hello-01.txt

+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ls -l
+insgesamt 4
+-rw-r--r-- 1 peter peter 34 18. Okt 13:14 hello-01.sh
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat hello-01.sh
+#!/bin/bash
+
+echo "Hello, world!"
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> chmod +x hello-01.sh
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ls -l
+insgesamt 4
+-rwxr-xr-x 1 peter peter 34 18. Okt 13:14 hello-01.sh
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-01.sh
+Hello, world!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> 

20231018.p0/hello-02.sh

+#!/bin/bash
+
+echo "Hello, $1!"

20231018.p0/hello-02.txt

+cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat hello-02.sh
+#!/bin/bash
+
+echo "Hello, $1!"
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-02.sh
+Hello, !
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-02.sh Peter
+Hello, Peter!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-02.sh Peter Gerwinski
+Hello, Peter!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-02.sh "Peter Gerwinski"
+Hello, Peter Gerwinski!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0>

20231018.p0/hello-03.txt

+cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat hello-03.sh
+#!/bin/bash
+
+echo "Hello, $0!"
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-03.sh "Schön hier."
+Hello, ./hello-03.sh!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0>

20231018.p0/hello-04.sh

+#!/bin/bash
+
+if [ "$1" = "en" ]; then
+  echo "Hello, world!"
+elif [ "$1" = "de" ]; then
+  echo "Hallo, Welt!"
+else
+  echo "Usage: $0 <language>"
+fi

20231018.p0/hello-04.txt

+"hello-04.sh" 9L, 148B geschrieben
+
+#!/bin/bash
+
+if [ "$1" = "en" ]; then
+  echo "Hello, world!"
+elif [ "$1" = "de" ]; then
+  echo "Hallo, Welt!"
+else
+  echo "Usage: $0 <language>"
+fi
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-04.sh
+Usage: ./hello-04.sh <language>
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-04.sh de
+Hallo, Welt!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0> ./hello-04.sh en
+Hello, world!
+cassini/home/peter/bo/2023ws/dbs/20231018.p0>