gistfile1.sh

# A faster version of which, that also prints ALL versions in your PATH,
# and accepts wildcards, e.g.: which '*uu*'. Silent if nothing found.
# Only works if test -x works...
# Modifyed by davida to only return the first match
function which() {
    case $# in
        0) echo Usage: which cmd ...; return 1;;
    esac

    dirs=`echo $PATH|sed 's/^:/. /
    s/:$/ ./
    s/::/ . /g
    s/:/ /g'`

    for cmd; do
        for d in $dirs; do
            for file in $d/$cmd ; do
                if test -x $file -a ! -d $file ; then
                    echo $file
                fi
            done
        done
    done
}