i-1

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 40 行

#!/bin/sh

test=i-1

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

test_failure=0
mkdir -p $tmp || test_failure=1
echo > $tmp/a || test_failure=1
test -f $tmp/a || test_failure=1

if test $test_failure = 1; then
  echo 'failure in testing framework'
  exit 1
fi

echo y > $tmp/$test.Iy
echo n > $tmp/$test.In

fail=0
rm -i $tmp/a < $tmp/$test.In > /dev/null 2>&1 || fail=1
# The file should not have been removed.
test -f $tmp/a || fail=1

rm -i $tmp/a < $tmp/$test.Iy > /dev/null 2>&1 || fail=1
# The file should have been removed this time.
test -f $tmp/a && fail=1

rm -rf $tmp

(exit $fail); exit