-#!/bin/bash
+#!/bin/sh
# Filename: grml-exec-wrapper
# Purpose: simple but smart program execution wrapper
# Authors: grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
*sudo*) PROG="$2" ;;
esac
-if type -a "$PROG" 1>/dev/null 2>&1 ; then
+is_installed() {
+ prog="$1"
+ [ -z "$prog" ] && return 1
+
+ ret=1
+ oifs="$IFS"
+ IFS=:
+ for dir in $PATH; do
+ [ -z "$dir" ] && continue
+ [ -x "$dir/$prog" ] && ret=0 && break
+ done
+
+ IFS="$oifs"
+ unset oifs
+ return "$ret"
+}
+
+if is_installed "$PROG" 1>/dev/null 2>&1 ; then
exec $@
else
RC=1