Bash/Scripting/Parse Args

Parsen mit 'while'

#!/bin/sh

while [ $1 ]; do
  case $1 in
      -u)
         shift;
         MYUSER=$1
         shift;
      ;;
      --quota)
         shift;
         Q=$1
         shift;
      ;;
      -h)
         echo "my help text "
      ;;
      *)
         echo "Unknown option $1"
         echo "Press enter to countinue"
         read dummy
      ;;
   esac
done

echo "\$MYUSER = $MYUSER"
echo "\$Q = $Q"

exit 0

Parsen mit 'select'

select opt in $@; do
   if [ "$opt" = "Quit" ]; then
      echo done
      exit
   elif [ "$opt" = "Hello" ]; then
      echo Hello World
   else
      clear
      echo bad option
   fi
done

If you run this script you'll see that it is a programmer's dream for text based menus. You'll probably notice that it's very similar to the 'for' construction, only rather than looping for each 'word' in $OPTIONS, it prompts the user. but use case construct in the select-loop instead...

Siehe auch

Vorlage Bash-Script