exact

来自「实战Linux编程的原代码,希望对学驱动的人能有所帮助」· 代码 · 共 39 行

#!/bin/sh
# make sure that neither --exact nor --zero gobbles a command line argument

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

pwd=`pwd`
tmp=exact.$$
trap 'status=$?; cd $pwd; rm -rf $tmp && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

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

if test $framework_failure = 1; then
  echo 'failure in testing framework'
  (exit 1); exit
fi

fail=0

for opt in --exact --zero; do
  echo a > a || fail=1
  echo bb > b || fail=1
  echo ccc > c || fail=1

  shred --remove $opt a b || fail=1
  test -f a && fail=1
  test -f b && fail=1

  shred --remove $opt c || fail=1
  test -f c && fail=1
done

(exit $fail); exit