--- /dev/null
+#! /bin/sh -e
+
+RET=1
+for PROGRAM in "$@"; do
+ IFS_SAVE="$IFS"
+ IFS=:
+ for ELEMENT in $PATH; do
+ if [ -f "$ELEMENT/$PROGRAM" -a -x "$ELEMENT/$PROGRAM" ]; then
+ echo "$ELEMENT/$PROGRAM"
+ RET=0
+ break
+ fi
+ done
+ IFS="$IFS_SAVE"
+done
+
+exit "$RET"