#!/bin/sh HOME=/dev/null export HOME unset which WHICH=`which which 2>/dev/null` if echo $WHICH | grep 'shell built-in command' >/dev/null 2>&1; then WHICH=which elif [ -z "$WHICH" ]; then if which which >/dev/null 2>&1; then WHICH=which else for a in /usr/ucb /usr/bin /bin /usr/local/bin; do if [ -x $a/which ]; then WHICH=$a/which break; fi done fi fi if [ -z "$WHICH" ]; then IFS=: for a in $PATH; do if [ -x $a/$1 ]; then echo "$a/$1" exit 0 fi done else a=`"$WHICH" "$1" 2>/dev/null` if [ ! -z "$a" -a -x "$a" ]; then echo "$a" exit 0 fi fi exit 1
