mirror of
https://github.com/notwa/rc
synced 2024-11-05 15:49:02 -08:00
67 lines
1 KiB
Text
67 lines
1 KiB
Text
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#!/usr/bin/env sh
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# this is `which` from Debian. the only changes are superficial (formatting).
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# this does not work as-is with zsh.
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set -ef
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if test -n "$KSH_VERSION"; then
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puts() {
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print -r -- "$*"
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}
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else
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puts() {
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printf '%s\n' "$*"
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}
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fi
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ALLMATCHES=0
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while getopts a whichopts
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do
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case "$whichopts" in
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a) ALLMATCHES=1 ;;
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?) puts "Usage: $0 [-a] args"; exit 2 ;;
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esac
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done
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shift $(($OPTIND - 1))
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if [ "$#" -eq 0 ]; then
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ALLRET=1
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else
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ALLRET=0
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fi
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case $PATH in
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(*[!:]:) PATH="$PATH:" ;;
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esac
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for PROGRAM in "$@"; do
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RET=1
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IFS_SAVE="$IFS"
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IFS=:
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case $PROGRAM in
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*/*)
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if [ -f "$PROGRAM" ] && [ -x "$PROGRAM" ]; then
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puts "$PROGRAM"
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RET=0
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fi
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;;
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*)
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for ELEMENT in $PATH; do
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if [ -z "$ELEMENT" ]; then
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ELEMENT=.
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fi
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if [ -f "$ELEMENT/$PROGRAM" ] && [ -x "$ELEMENT/$PROGRAM" ]; then
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puts "$ELEMENT/$PROGRAM"
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RET=0
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[ "$ALLMATCHES" -eq 1 ] || break
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fi
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done
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;;
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esac
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IFS="$IFS_SAVE"
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if [ "$RET" -ne 0 ]; then
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ALLRET=1
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fi
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done
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exit "$ALLRET"
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