Variable pattern testing

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*Tags*: cmd:case

 $ case $v in [cC]) echo found;; *) echo not found ;; esac

# all must be in current directory:
case "$*" in
*/*) echo "nom quitting: I can't handle '/'s." >&2; exit ;;
esac

case $1 in -[1-9]*)
    n=`expr 1 - "$1"`
    shift
esac

xsel -p | perl -pe 's/[a-z]/[$&\u$&]/g'

$ echo '*.tar.gz | *.tgz' | perl -pe 's/[a-z]/\[$&\u$&\]/g'
*.[tT][aA][rR].[gG][zZ] | *.[tT][gG][zZ]

$ v=c
$ case $v in "c") echo found;; *) echo not found ;; esac
found

$ v=C
$ case $v in "c") echo found;; *) echo not found ;; esac
not found

$ case $v in "[cC]") echo found	*) echo not found ;; esac not found
$ case $v in [cC]) echo found	*) echo not found ;; esac found


	!!


	No quoting!:

  case "$src" in '/*')          # referring to an abs point

will fail to operate while the following is ok:

  case "$src" in /*)            # referring to an abs point

documented on: 2000.08.15 Tue 16:55:16