view build-aux/move-if-change @ 21134:2e5c1f766ac9

provide replacement hints for deprecated C++ functions * oct-conf-post.in.h (OCTAVE_DEPRECATED): Accept message argument. * error.h, errwarn.h, gripes.h, symtab.h, variables.h, * ov-base-sparse.h, ov-base.h, ov.h, Array.h, DiagArray2.h, * PermMatrix.h, Range.h, Sparse.h, dSparse.h, lo-array-errwarn.h, * lo-array-gripes.h, unwind-prot.h: Change all uses of OCTAVE_DEPRECATED.
author John W. Eaton <jwe@octave.org>
date Fri, 22 Jan 2016 12:15:12 -0500
parents 5e50f25f245a
children 1bca6c72d2b1
line wrap: on
line source

#!/bin/sh
#
# Like mv $1 $2, but if the files are the same, just delete $1.
# Status is 0 if $2 is changed, 1 otherwise.

if test -r $2; then
  if cmp $1 $2 > /dev/null; then
    echo $2 is unchanged 1>&2
    rm -f $1
  else
    mv -f $1 $2
  fi
else
  mv -f $1 $2
fi