src/scripts/newer

   1 #! /bin/sh
   2 # $Cambridge: exim/src/scripts/newer,v 1.1 2004/10/06 15:07:40 ph10 Exp $
   3
   4 # Script to determine whether the first file is newer than the second.
   5 # If the first does not exist, the answer is "no";
   6 # if the second does not exist, the answer is "yes";
   7 # otherwise their ages are compared using "find".
   8
   9 if [ $# -ne 2 ]; then
  10   echo "*** Two file names needed for 'newer' ***"
  11   exit 2;
  12 fi
  13
  14 if [ ! -f $1 ]; then exit 1; fi
  15 if [ ! -f $2 ]; then exit 0; fi
  16
  17 case `find $1 -newer $2 -print` in
  18 '')     exit 1;;
  19 *)      exit 0;;
  20 esac
  21
  22 # End