file-type

实战Linux编程的原代码,希望对学驱动的人能有所帮助

#!/bin/sh
# contrast ls -F and ls --indicator-style=file-type

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

. $srcdir/../envvar-check
. $srcdir/../lang-default

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; 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
mkdir sub
cd sub
mkdir dir
touch regular executable
chmod a+x executable
ln -s regular slink-reg
ln -s dir slink-dir
ln -s nowhere slink-dangle
mknod block b 20 20 2> /dev/null && block="block
"
mknod char c 10 10 2> /dev/null && char="char
"
mkfifo fifo
cd ..


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

fail=0

ls -1F sub > out || fail=1
cat <<EOF > exp
$block${char}dir/
executable*
fifo|
regular
slink-dangle@
slink-dir@
slink-reg@
EOF

sed 's/\*//' exp > exp2
ls -1 --indicator-style=file-type sub > out2 || fail=1

cmp out exp || fail=1
test $fail = 1 && diff out exp 2> /dev/null

cmp out2 exp2 || fail=1
test $fail = 1 && diff out2 exp2 2> /dev/null

ls --color -1F sub > out3 || fail=1
cat <<EOF > exp3
$block${char}dir/
executable*
fifo|
regular
slink-dangle@
slink-dir@
slink-reg@
EOF

(exit $fail); exit $fail