3 # Copyright (c) 2003 Thomas Klausner.
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
8 # 1. Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # 2. Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in the
12 # documentation and/or other materials provided with the distribution.
14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 # handle being called 'zegrep' or 'zfgrep'
50 cattool="/usr/bin/zstdcat"
54 cattool="/usr/bin/bzcat"
57 cattool="/usr/bin/zcat"
60 cattool="/usr/bin/xzcat"
63 cattool="/usr/bin/lzcat"
66 echo "Invalid command: ${prg}" >&2
71 # skip all options and pass them on to grep taking care of options
72 # with arguments, and if -e was supplied
74 while [ $# -gt 0 -a ${endofopts} -eq 0 ]
77 # from GNU grep-2.5.1 -- keep in sync!
81 echo "${prg}: missing argument for $1 flag" >&2
94 grep_args="${grep_args} $1 $2"
110 echo "${prg}: the ${1} flag is not currently supported" >&2
117 grep_args="${grep_args} $1"
121 # pattern to grep for
127 # if no -e option was found, take next argument as grep-pattern
128 if [ ${pattern_found} -lt 1 ]
130 if [ $# -ge 1 ]; then
133 elif [ ${hyphen} -gt 0 ]; then
136 echo "${prg}: missing pattern" >&2
146 ${cattool} ${catargs} - | ${grep} ${grep_args} -- "${pattern}" - || ret=$?
148 # ... on all files given on the command line
149 if [ ${silent} -lt 1 -a $# -gt 1 ]; then
150 grep_args="-H ${grep_args}"
153 ${cattool} ${catargs} -- "${file}" |
154 ${grep} --label="${file}" ${grep_args} -- "${pattern}" - || ret=$?