pwhich

   1 #! /bin/sh
   2 set -e
   3
   4 RET=1
   5 for PROGRAM in "$@"; do
   6  IFS_SAVE="$IFS"
   7  IFS=:
   8  for ELEMENT in $PATH; do
   9   if [ -f "$ELEMENT/$PROGRAM" ] && [ -x "$ELEMENT/$PROGRAM" ]; then
  10    echo "$ELEMENT/$PROGRAM"
  11    RET=0
  12    break
  13   fi
  14  done
  15  IFS="$IFS_SAVE"
  16 done
  17
  18 exit "$RET"