sunos-1

实战Linux编程的原代码,希望对学驱动的人能有所帮助

#!/bin/sh
# Make sure that rm -r '' fails.
# On SunOS 4.1.3, running rm -r '' in a nonempty directory may
# actually remove files with names of entries in the current directory
# but relative to `/' rather than relative to the current directory.

if test "$VERBOSE" = yes; then
  set -x
  rm --version
fi

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd $pwd; rm -rf $t0 && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit
fi

fail=0
rm -r '' > /dev/null 2>&1 && fail=1

(exit $fail); exit