Shellprogrammierung (Linux)
Allgemein
Hilfe zu eingebauten Kommandos: help <command>
Hilfe zu externen Kommandos: man <command>
Status bei Pipes
Dazu kann die Bash-Variable PIPESTATUS
test ${PIPESTATUS[0]} -eq 0
Links
https://stackoverflow.com/questions/1221833/pipe-output-and-capture-exit-status-in-bash
Testscripte
getops
#!/bin/bash
while getopts "l:m" OPTION &>/dev/null
do
case "$OPTION" in
l) echo "Option l with argument $OPTARG";;
m) echo "Option m without argument";;
*) echo "Wrong option $OPTION";;
esac
done
# OPTIND contains the next argument
shift `expr ${OPTIND} - 1`
# alternative:
# shift "$((OPTIND-1))"
echo "command = `basename $0`, first argument = $1"
Links
http://openbook.rheinwerk-verlag.de/shell_programmierung/shell_005_007.htm
Fortschrittsanzeige
Dialog
Links
https://askubuntu.com/questions/1705/how-can-i-create-a-select-menu-in-a-shell-script
Syntax checken
bash -vn script.sh
https://www.tecmint.com/check-syntax-in-shell-script/
Links
http://wiki.bash-hackers.org/commands/classictest
http://linuxint.com/DOCS/Linux_Docs/openbook_shell/index.htm
Zurück zu Ubuntu