File: newer

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#! /bin/sh

# Script to determine whether the first file is newer than the second.
# If the first does not exist, the answer is "no";
# if the second does not exist, the answer is "yes";
# otherwise their ages are compared using "find".

if [ $# -ne 2 ]; then
  echo "*** Two file names needed for 'newer' ***"
  exit 2;
fi

if [ ! -f $1 ]; then exit 1; fi
if [ ! -f $2 ]; then exit 0; fi

case `find $1 -newer $2 -print` in
'')	exit 1;;
*)	exit 0;;
esac

# End