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Text File  |  1989-10-03  |  321 b   |  20 lines
  1. #  which(1) - Which executable file    Author: Terrence W. Holm
  2.  
  3. if test $# -ne 1; then
  4.   echo "Usage:  which  program"
  5.   exit 1
  6. fi
  7.  
  8. path="`IFS=: eval echo $PATH`"
  9.  
  10. for dir in . $path; do
  11.   filename=$dir/$1
  12.   if test -f $filename -a -x $filename; then
  13.     echo $filename
  14.     exit 0
  15.   fi
  16. done
  17.  
  18. echo "No $1 in . $path"
  19. exit 1
  20.