Working with compressed files - Revision history

Roux: Undo revision 339 by Roux (talk)

2011-12-12T10:21:01Z

Undo revision 339 by Roux (talk)

@@ Line 8: / Line 8: @@
 <source lang="bash">
 #!/bin/bash
 # based on zless
@@ Line 13: / Line 27: @@
 PATH=${GZIP_BINDIR-'/bin'}:$PATH
-version="ztail 0.1"
+version="ztail 0.1
 usage="Usage: $0 [OPTIONS]... [FILES]...

Roux at 15:08, 11 December 2011

2011-12-11T15:08:15Z

@@ Line 8: / Line 8: @@
 <source lang="bash">
 #!/bin/bash
 # based on zless
@@ Line 27: / Line 13: @@
 PATH=${GZIP_BINDIR-'/bin'}:$PATH
-version="ztail 0.1
+version="ztail 0.1"
 usage="Usage: $0 [OPTIONS]... [FILES]...

Roux at 10:52, 2 December 2011

2011-12-02T10:52:13Z

← Older revision		Revision as of 12:52, 2 December 2011
Line 2:		Line 2:
	zgrep, zcat, zdiff, zless, zmore, zegrep,...		zgrep, zcat, zdiff, zless, zmore, zegrep,...
	Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:		Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:

			=====Caution:=====
			very basic version, works when the options starts with '-' so it works with '-n10' but fails with '-n 10'. Should be easily improved...

	<source lang="bash">		<source lang="bash">
	#!/bin/bash		#!/bin/bash

Roux at 10:18, 28 November 2011

2011-11-28T10:18:06Z

← Older revision		Revision as of 12:18, 28 November 2011
Line 3:		Line 3:
	Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:		Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:
	<source lang="bash">		<source lang="bash">
	#!/bin/bash		#!/bin/bash

			# 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 2 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.

			# based on zless

	PATH=${GZIP_BINDIR-'/bin'}:$PATH		PATH=${GZIP_BINDIR-'/bin'}:$PATH

	~~usage~~="~~Usage: $~~0 ~~[OPTIONS]~~... ~~[FILES]~~...		version="ztail 0.1
	~~Like 'tail'~~, ~~but operate on~~ the ~~uncompressed contents of any compressed FILEs~~.		Copyright (C) 2007, Free Software Foundation, Inc. <http://fsf.org/>
			This is free software. You may redistribute copies of it under the terms of
			the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
			There is NO WARRANTY, to the extent permitted by law.

			Written by Guillaume Roux."

			usage="Usage: $0 [OPTIONS]... [FILES]...

			Same as the 'tail' command, but operate on the uncompressed contents of any compressed FILEs.
	Options are the same as for 'tail'."		Options are the same as for 'tail'."

Line 14:		Line 39:
	--help) exec echo "$usage";;		--help) exec echo "$usage";;
	-h) exec echo "$usage";;		-h) exec echo "$usage";;
			--version) exec echo "$version";;
	esac		esac

	options=""		options=""
	~~files~~=""		count=0
	for i in $@; do		for i in $@; do
	str="$i"		str="$i"
	if test -f $i && [ ${str:(-3)} = ".gz" ]; then		if test -f $i && [ ${str:(-3)} = ".gz" ]; then
	files=$~~files"$i "~~		files[++count]=$str
	else		else
	if [ ${str:0:1} = "-" ] && [ $str != "-v" ] && [ $str != "--verbose" ]; then		if [ ${str:0:1} = "-" ] && [ $str != "-v" ] && [ $str != "--verbose" ]; then
	options=$options"$i "		options=$options"$i "
	elif [ $str != "-v" ] && [ $str != "--verbose" ]; then		elif [ $str != "-v" ] && [ $str != "--verbose" ]; then
	echo -ne "*Warning: $i is neither a regular zip file or a regular option*\n\n"		echo -ne "*Warning: $i is neither a regular zip file or a regular option*\n\n"
Line 31:		Line 57:
	done		done

	for ~~file~~ in $~~files~~; do		if [ $count -gt 0 ]; then
	echo "==>"$~~file~~"<=="		if [ $count -eq 1 ]; then
	exec gzip -cd $~~file~~ \| tail $options		exec gzip -cd ${files[1]} \| tail $options
	done		else
			for j in `seq 1 $count`; do
			echo "==>"${files[j]}"<=="
			exec gzip -cd ${files[j]} \| tail $options
			done
			fi
			else
			echo -ne "*Warning: no regular zip files given*\n\n"
			exec echo "$usage"
			fi
	</source>		</source>

Roux at 14:07, 23 November 2011

2011-11-23T14:07:25Z

← Older revision		Revision as of 16:07, 23 November 2011
Line 1:		Line 1:
	Linux usually provides a couple of command piping gzip		Linux usually provides a couple of command piping gzip
	~~zgreg~~, zcat, zdiff, zless, zmore, zegrep,...		zgrep, zcat, zdiff, zless, zmore, zegrep,...
	Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:		Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:
	<source lang="bash">		<source lang="bash">

Roux: Created page with "Linux usually provides a couple of command piping gzip zgreg, zcat, zdiff, zless, zmore, zegrep,... Here is a simple extension of ''tail'' and ''head'' for zipped files, that yo..."

2011-11-19T13:26:34Z

Created page with "Linux usually provides a couple of command piping gzip zgreg, zcat, zdiff, zless, zmore, zegrep,... Here is a simple extension of ''tail'' and ''head'' for zipped files, that yo..."

New page

Linux usually provides a couple of command piping gzip
zgreg, zcat, zdiff, zless, zmore, zegrep,...
Here is a simple extension of ''tail'' and ''head'' for zipped files, that you can call ''ztail'' and ''zhead'' (example is for tail, replace "tail" with "head" everywhere to get zhead) and add to your own /bin directory:
<source lang="bash">
#!/bin/bash
PATH=${GZIP_BINDIR-'/bin'}:$PATH

usage="Usage: $0 [OPTIONS]... [FILES]...
Like 'tail', but operate on the uncompressed contents of any compressed FILEs.

Options are the same as for 'tail'."

case $1 in
--help) exec echo "$usage";;
-h) exec echo "$usage";;
esac

options=""
files=""
for i in $@; do
str="$i"
if test -f $i && [ ${str:(-3)} = ".gz" ]; then
files=$files"$i "
else
if [ ${str:0:1} = "-" ] && [ $str != "-v" ] && [ $str != "--verbose" ]; then
options=$options"$i "
elif [ $str != "-v" ] && [ $str != "--verbose" ]; then
echo -ne "***Warning: $i is neither a regular zip file or a regular option***\n\n"
fi
fi
done

for file in $files; do
echo "==>"$file"<=="
exec gzip -cd $file | tail $options
done
</source>