#!/bin/shif test "$VERBOSE" = yes; then  set -x  cp --versionfipwd=`pwd`t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$trap 'status=$?; cd $pwd; rm -rf $t0 && exit $status' 0trap '(exit $?); exit' 1 2 13 15framework_failure=0mkdir -p $tmp || framework_failure=1cd $tmp || framework_failure=1if test $framework_failure = 1; then  echo '$0: failure in testing framework' 1>&2  (exit 1); exitfisuffix=.bfile=b1.$$file_backup="$file$suffix"temp_files="$file $file_backup"rm -f $temp_filesfail=0echo test > $file || fail=1# Specify both version control and suffix so the environment variables# (possibly set by the user running these tests) aren't used.cp --force --backup=simple --suffix=$suffix $file $file \  || fail=1test -f $file || fail=1test -f $file_backup || fail=1cmp $file $file_backup > /dev/null || fail=1(exit $fail); exit