csplit

实战Linux编程的原代码,希望对学驱动的人能有所帮助

#!/bin/sh
# various csplit tests

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

. $srcdir/../lang-default

pwd=`pwd`
tmp=csplit.$$
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 "$0: failure in testing framework" 1>&2
  (exit 1); exit
fi

fail=0

# csplit could get a failed assertion to 2.0.17
(echo a; echo; echo) > in
csplit in '/^$/' 2 > out || fail=1
cat <<EOF > exp
2
0
2
EOF
cmp out exp || fail=1
test $fail = 1 && diff out exp 2> /dev/null
rm -f in out exp

# csplit would infloop
(echo; echo a) > in
csplit in '/a/-1' '{*}' > out || fail=1
cat <<EOF > exp
0
3
EOF
cmp out exp || fail=1
test $fail = 1 && diff out exp 2> /dev/null
rm -f in out exp

# `echo |csplit - 1 1' used to abort.
echo > in
csplit in 1 1 > out 2> err || fail=1
cat <<EOF > exp
0
0
1
EOF
cmp out exp || fail=1
test $fail = 1 && diff out exp 2> /dev/null
cat <<\EOF > experr
csplit: warning: line number `1' is the same as preceding line number
EOF
cmp err experr || fail=1
test $fail = 1 && diff err experr 2> /dev/null
rm -f in out exp err experr

# make sure `csplit FILE 0' fails.
echo > in
csplit in 0 > out 2> err && fail=1
csplit in 2 1 > out 2>> err && fail=1
csplit in 3 3 > out 2>> err && fail=1
cat <<\EOF > experr
csplit: 0: line number must be greater than zero
csplit: line number `1' is smaller than preceding line number, 2
csplit: warning: line number `3' is the same as preceding line number
csplit: `3': line number out of range
EOF
cmp err experr || fail=1
test $fail = 1 && diff err experr 2> /dev/null

(exit $fail); exit