hdf5/bin/newer

#!/bin/sh
##
## Copyright by the Board of Trustees of the University of Illinois.
## All rights reserved.
##
## This file is part of HDF5.  The full HDF5 copyright notice, including
## terms governing use, modification, and redistribution, is contained in
## the files COPYING and Copyright.html.  COPYING can be found at the root
## of the source code distribution tree; Copyright.html can be found at the
## root level of an installed copy of the electronic HDF5 document set and
## is linked from the top-level documents page.  It can also be found at
## http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have
## access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu.
##
# Compare the modification time of file argument 1 against other file arguments.
# Return true (0) if argument 1 is newer than all others, otherwise return
# false (1).  If any of the argument is not a file, return false (1).
#
# Programmer: Albert Cheng
# Created Date: 2005/07/06
# Modification:
#    Albert Cheng 2005/8/30
#    Changed from two arguments to mulitple arguments.

if test $# -lt 2; then
    exit 1
fi
if test ! -f $1; then
    exit 1
fi
f1=$1
shift

for f in $*; do
    if ! test -f $f; then
	exit 1
    fi
    if test X = X`find $f1 -newer $f -print`; then
	exit 1
    fi
done

# passed all tests.  Must be a file newer than all others.
exit 0