diag

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 we get proper diagnostics: e.g., with --target-dir=d but no args

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

# Make sure we get English translations.
. $srcdir/../lang-default

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

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

touch f1 || framework_failure=1
touch f2 || framework_failure=1
touch d || framework_failure=1

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

# These mv commands should all exit nonzero.

# Too few args.  This first one did fail, but with an incorrect diagnostic
# until fileutils-4.0u.
mv --target=d >> out 2>&1 && fail=1
mv no-file >> out 2>&1 && fail=1

# Target is not a directory.
mv f1 f2 f1 >> out 2>&1 && fail=1
mv --target=f2 f1 >> out 2>&1 && fail=1

cat > exp <<\EOF
mv: missing file argument
Try `mv --help' for more information.
mv: missing file argument
Try `mv --help' for more information.
mv: when moving multiple files, last argument must be a directory
Try `mv --help' for more information.
mv: specified target, `f2' is not a directory
Try `mv --help' for more information.
EOF

cmp out exp || fail=1

(exit $fail)
exit $fail