obsolescent

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 touch succeeds with a single 8- or 10-digit file name argument

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

pwd=`pwd`
tmp=obsol.$$
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 ones in 11111111 1111111111; do
  touch $ones || fail=1
  test -f $ones || fail=1
done

(exit $fail); exit