Initial class construction
This commit is contained in:
João Narciso
272
Git/usr/bin/zgrep
Normal file
272
Git/usr/bin/zgrep
Normal file
@ -0,0 +1,272 @@
|
||||
#!/bin/sh
|
||||
|
||||
# zgrep -- a wrapper around a grep program that decompresses files as needed
|
||||
# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
|
||||
|
||||
# Copyright (C) 1998, 2001-2002, 2006-2007, 2009-2018 Free Software Foundation,
|
||||
# Inc.
|
||||
|
||||
# Copyright (C) 1993 Jean-loup Gailly
|
||||
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
|
||||
# You should have received a copy of the GNU General Public License along
|
||||
# with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
|
||||
grep='${GREP-'\''/usr/bin/grep'\''}'
|
||||
|
||||
version='zgrep (gzip) 1.10
|
||||
Copyright (C) 2010-2018 Free Software Foundation, Inc.
|
||||
This is free software. You may redistribute copies of it under the terms of
|
||||
the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
|
||||
There is NO WARRANTY, to the extent permitted by law.
|
||||
|
||||
Written by Jean-loup Gailly.'
|
||||
|
||||
usage="Usage: $0 [OPTION]... [-e] PATTERN [FILE]...
|
||||
Look for instances of PATTERN in the input FILEs, using their
|
||||
uncompressed contents if they are compressed.
|
||||
|
||||
OPTIONs are the same as for 'grep', except that the following 'grep'
|
||||
options are not supported: --dereference-recursive (-R), --directories (-d),
|
||||
--exclude, --exclude-from, --exclude-dir, --include, --null (-Z),
|
||||
--null-data (-z), and --recursive (-r).
|
||||
|
||||
Report bugs to <bug-gzip@gnu.org>."
|
||||
|
||||
# sed script to escape all ' for the shell, and then (to handle trailing
|
||||
# newlines correctly) append ' to the last line.
|
||||
escape='
|
||||
s/'\''/'\''\\'\'''\''/g
|
||||
$s/$/'\''/
|
||||
'
|
||||
operands=
|
||||
have_pat=0
|
||||
files_with_matches=0
|
||||
files_without_matches=0
|
||||
no_filename=0
|
||||
with_filename=0
|
||||
pattmp=
|
||||
|
||||
while test $# -ne 0; do
|
||||
option=$1
|
||||
shift
|
||||
optarg=
|
||||
|
||||
case $option in
|
||||
(-[0123456789EFGHIKLPRTUVZabchilnoqrsuvwxyz]*[!0123456789]*)
|
||||
arg2=-\'$(expr "X$option" : 'X-.[0-9]*\(.*\)' | sed "$escape")
|
||||
eval "set -- $arg2 "'${1+"$@"}'
|
||||
option=$(expr "X$option" : 'X\(-.[0-9]*\)');;
|
||||
(--binary-*=* | --[lm]a*=* | --reg*=*)
|
||||
;;
|
||||
(-[ABCDXdefm] | binary-* | --file | --[lm]a* | --reg*)
|
||||
case ${1?"$option option requires an argument"} in
|
||||
(*\'*)
|
||||
optarg=" '"$(printf '%s\n' "$1" | sed "$escape");;
|
||||
(*)
|
||||
optarg=" '$1'";;
|
||||
esac
|
||||
shift;;
|
||||
(-f?*\'*)
|
||||
optarg=" '"$(expr "X$option" : 'X-f\(.*\)' | sed "$escape")
|
||||
option=-f;;
|
||||
(-f?*)
|
||||
optarg=" '"$(expr "X$option" : 'X-f\(.*\)')\'
|
||||
option=-f;;
|
||||
(--file=*\'*)
|
||||
optarg=" '"$(expr "X$option" : 'X--file=\(.*\)' | sed "$escape")
|
||||
option=--file;;
|
||||
(--file=*)
|
||||
optarg=" '"$(expr "X$option" : 'X--file=\(.*\)')\'
|
||||
option=--file;;
|
||||
(--)
|
||||
break;;
|
||||
(-?*)
|
||||
;;
|
||||
(*)
|
||||
case $option in
|
||||
(*\'*)
|
||||
operands="$operands '"$(printf '%s\n' "$option" | sed "$escape");;
|
||||
(*)
|
||||
operands="$operands '$option'";;
|
||||
esac
|
||||
${POSIXLY_CORRECT+break}
|
||||
continue;;
|
||||
esac
|
||||
|
||||
case $option in
|
||||
(-[drRzZ] | --di* | --exc* | --inc* | --rec* | --nu*)
|
||||
printf >&2 '%s: %s: option not supported\n' "$0" "$option"
|
||||
exit 2;;
|
||||
(-e* | --reg*)
|
||||
have_pat=1;;
|
||||
(-f | --file)
|
||||
# The pattern is coming from a file rather than the command-line.
|
||||
# If the file is actually stdin then we need to do a little
|
||||
# magic, since we use stdin to pass the gzip output to grep.
|
||||
# Similarly if it is not a regular file, since it might be read repeatedly.
|
||||
# In either of these two cases, copy the pattern into a temporary file,
|
||||
# and use that file instead. The pattern might contain null bytes,
|
||||
# so we cannot simply switch to -e here.
|
||||
if case $optarg in
|
||||
(" '-'" | " '/dev/stdin'" | " '/dev/fd/0'")
|
||||
:;;
|
||||
(*)
|
||||
eval "test ! -f$optarg";;
|
||||
esac
|
||||
then
|
||||
if test -n "$pattmp"; then
|
||||
eval "cat --$optarg" >>"$pattmp" || exit 2
|
||||
continue
|
||||
fi
|
||||
trap '
|
||||
test -n "$pattmp" && rm -f "$pattmp"
|
||||
(exit 2); exit 2
|
||||
' HUP INT PIPE TERM 0
|
||||
case $TMPDIR in
|
||||
/ | /*/) ;;
|
||||
/*) TMPDIR=$TMPDIR/;;
|
||||
*) TMPDIR=/tmp/;;
|
||||
esac
|
||||
if type mktemp >/dev/null 2>&1; then
|
||||
pattmp=$(mktemp "${TMPDIR}zgrepXXXXXXXXX") || exit 2
|
||||
else
|
||||
set -C
|
||||
pattmp=${TMPDIR}zgrep$$
|
||||
fi
|
||||
eval "cat --$optarg" >"$pattmp" || exit 2
|
||||
optarg=' "$pattmp"'
|
||||
fi
|
||||
have_pat=1;;
|
||||
(--h | --he | --hel | --help)
|
||||
printf '%s\n' "$usage" || exit 2
|
||||
exit;;
|
||||
(-H | --wi | --wit | --with | --with- | --with-f | --with-fi \
|
||||
| --with-fil | --with-file | --with-filen | --with-filena | --with-filenam \
|
||||
| --with-filename)
|
||||
with_filename=1
|
||||
continue;;
|
||||
(-l | --files-with-*)
|
||||
files_with_matches=1;;
|
||||
(-L | --files-witho*)
|
||||
files_without_matches=1;;
|
||||
(-h | --no-f*)
|
||||
no_filename=1;;
|
||||
(-V | --v | --ve | --ver | --vers | --versi | --versio | --version)
|
||||
printf '%s\n' "$version" || exit 2
|
||||
exit;;
|
||||
esac
|
||||
|
||||
case $option in
|
||||
(*\'?*)
|
||||
option=\'$(printf '%s\n' "$option" | sed "$escape");;
|
||||
(*)
|
||||
option="'$option'";;
|
||||
esac
|
||||
|
||||
grep="$grep $option$optarg"
|
||||
done
|
||||
|
||||
eval "set -- $operands "'${1+"$@"}'
|
||||
|
||||
if test $have_pat -eq 0; then
|
||||
case ${1?"missing pattern; try \`$0 --help' for help"} in
|
||||
(*\'*)
|
||||
grep="$grep -- '"$(printf '%s\n' "$1" | sed "$escape");;
|
||||
(*)
|
||||
grep="$grep -- '$1'";;
|
||||
esac
|
||||
shift
|
||||
fi
|
||||
|
||||
if test $# -eq 0; then
|
||||
set -- -
|
||||
fi
|
||||
|
||||
exec 3>&1
|
||||
res=1
|
||||
|
||||
for i
|
||||
do
|
||||
# Fail if gzip or grep (or sed) fails.
|
||||
gzip_status=$(
|
||||
exec 5>&1
|
||||
(gzip -cdfq -- "$i" 5>&-; echo $? >&5) 3>&- |
|
||||
if test $files_with_matches -eq 1; then
|
||||
eval "$grep" >/dev/null && { printf '%s\n' "$i" || exit 2; }
|
||||
elif test $files_without_matches -eq 1; then
|
||||
eval "$grep" >/dev/null || {
|
||||
r=$?
|
||||
if test $r -eq 1; then
|
||||
printf '%s\n' "$i" || r=2
|
||||
fi
|
||||
test 256 -le $r && r=$(expr 128 + $r % 128)
|
||||
exit $r
|
||||
}
|
||||
elif test $with_filename -eq 0 &&
|
||||
{ test $# -eq 1 || test $no_filename -eq 1; }; then
|
||||
eval "$grep"
|
||||
else
|
||||
case $i in
|
||||
(*'
|
||||
'* | *'&'* | *'\'* | *'|'*)
|
||||
i=$(printf '%s\n' "$i" |
|
||||
sed '
|
||||
$!N
|
||||
$s/[&\|]/\\&/g
|
||||
$s/\n/\\n/g
|
||||
');;
|
||||
esac
|
||||
sed_script="s|^|$i:|"
|
||||
|
||||
# Fail if grep or sed fails.
|
||||
r=$(
|
||||
exec 4>&1
|
||||
(eval "$grep" 4>&-; echo $? >&4) 3>&- | sed "$sed_script" >&3 4>&-
|
||||
) || { r=$?; test $r -lt 2 && r=2; }
|
||||
test 256 -le $r && r=$(expr 128 + $r % 128)
|
||||
exit $r
|
||||
fi >&3 5>&-
|
||||
)
|
||||
r=$?
|
||||
|
||||
# Ignore gzip status 2, as it is just a warning.
|
||||
# gzip status 1 is an error, like grep status 2.
|
||||
test $gzip_status -eq 2 && gzip_status=0
|
||||
test $gzip_status -eq 1 && gzip_status=2
|
||||
|
||||
# Use the more serious of the grep and gzip statuses.
|
||||
test $r -lt $gzip_status && r=$gzip_status
|
||||
|
||||
# Accumulate the greatest status, except consider 0 to be greater than 1.
|
||||
if test $r -le 1 && test $res -le 1; then
|
||||
test $r -lt $res
|
||||
else
|
||||
test $res -lt $r
|
||||
fi && res=$r
|
||||
|
||||
# Exit immediately on a serious error.
|
||||
test 126 -le $res && break
|
||||
done
|
||||
|
||||
if test -n "$pattmp"; then
|
||||
rm -f "$pattmp" || {
|
||||
r=$?
|
||||
test $r -lt 2 && r=2
|
||||
test $res -lt $r && res=$r
|
||||
}
|
||||
trap - HUP INT PIPE TERM 0
|
||||
fi
|
||||
|
||||
test 128 -le $res && kill -$(expr $res % 128) $$
|
||||
exit $res
|
||||
Reference in New Issue
Block a user