from small one page howto to huge articles all in one place
 

search text in:





Poll
Which filesystem do you use?






poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

85514

userrating:

average rating: 1.7 (82 votes) (1=very good 6=terrible)


May 25th. 2007:
Words

486

Views

201985

why adblockers are bad


Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

words:

161

views:

84033

userrating:

average rating: 1.3 (27 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





7z

Section: User Commands (1)
Updated: September 1 2006
Index Return to Main Contents
 

NAME

7z - A file archiver with highest compression ratio  

SYNOPSIS

7z [adeltux] [-] [SWITCH] <ARCHIVE_NAME> <ARGUMENTS>...

 

DESCRIPTION

7-Zip is a file archiver with the highest compression ratio. The program supports 7z (that implements LZMA compression algorithm), ZIP, CAB, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.
7z uses plugins to handle archives.

 

FUNCTION LETTERS

a
Add
d
Delete
e
Extract
l
List
t
Test
u
Update
x
eXtract with full paths

 

SWITCHES

-ai[r[-|0]]{@listfile|!wildcard}
Include archives
-ax[r[-|0]]{@listfile|!wildcard}
eXclude archives
-bd
Disable percentage indicator
-i[r[-|0]]{@listfile|!wildcard}
Include filenames
-l
don't store symlinks; store the files/directories they point to (CAUTION : the scanning stage can never end because of recursive symlinks like 'ln -s .. ldir')
-m{Parameters}
Set Compression Method (see {DEST_SHARE_DOC}/MANUAL/switches/method.htm for a list of methods)
-mhe=on|off
7z format only : enables or disables archive header encryption (Default : off)
-o{Directory}
Set Output directory
-p{Password}
Set Password
-r[-|0]
Recurse subdirectories (CAUTION: this flag does not do what you think, avoid using it)
-sfx[{name}]
Create SFX archive
-si
Read data from StdIn (eg: tar cf - directory | 7z a -si directory.tar.7z)
-so
Write data to StdOut (eg: % echo foo | 7z a dummy -tgzip -si -so > /dev/null)
-slt
Sets technical mode for l (list) command
-t{Type}
Type of archive (7z, zip, gzip, bzip2 or tar. 7z format is default)
-v{Size}[b|k|m|g]
Create volumes
-u[-][p#][q#][r#][x#][y#][z#][!newArchiveName]
Update options
-w[path]
Set Working directory
-x[r[-|0]]]{@listfile|!wildcard}
Exclude filenames
-y
Assume Yes on all queries

 

DIAGNOSTICS

7-Zip returns the following exit codes:
0
Normal (no errors or warnings detected)
1
Warning (Non fatal error(s)). For example, some files cannot be read during compressing. So they were not compressed
2
Fatal error
7
Bad command line parameters
8
Not enough memory for operation
255
User stopped the process with control-C (or similar)
 

Backup and limitations

DO NOT USE the 7-zip format for backup purpose on Linux/Unix because :
 - 7-zip does not store the owner/group of the file.

On Linux/Unix, in order to backup directories you must use tar :
 - to backup a directory  : tar cf - directory | 7za a -si directory.tar.7z
 - to restore your backup : 7za x -so directory.tar.7z | tar xf -

If you want to send files and directories (not the owner of file) to others Unix/MacOS/Windows users, you can use the 7-zip format.


  example : 7za a directory.7z  directory

Do not use "-r" because this flag does not do what you think.

Do not use directory/* because of ".*" files (example : "directory/*" does not match "directory/.profile")  

EXAMPLE 1

7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on archive.7z dir1
adds all files from directory "dir1" to archive archive.7z using "ultra settings"
-t7z
7z archive
-m0=lzma
lzma method
-mx=9
level of compression = 9 (Ultra)
-mfb=64
number of fast bytes for LZMA = 64
-md=32m
dictionary size = 32 megabytes
-ms=on
solid archive = on
 

EXAMPLE 2

7z a -sfx archive.exe dir1
add all files from directory "dir1" to SFX archive archive.exe (Remark : SFX archive MUST end with ".exe")
 

EXAMPLE 3

7z a -mhe=on -pmy_password archive.7z a_directory
add all files from directory "a_directory" to the archive "archive.7z" (with data and header archive encryption on)
 

SEE ALSO

7za(1), 7zr(1), bzip2(1), gzip(1), zip(1)

 

HTML Documentation

{DEST_SHARE_DOC}/MANUAL/index.htm  

AUTHOR

Written for Debian by Mohammed Adnene Trojette.


 

Index

NAME
SYNOPSIS
DESCRIPTION
FUNCTION LETTERS
SWITCHES
DIAGNOSTICS
Backup and limitations
EXAMPLE 1
EXAMPLE 2
EXAMPLE 3
SEE ALSO
HTML Documentation
AUTHOR


Please read "Why adblockers are bad".



Other free services
toURL.org
Shorten long
URLs to short
links like
http://tourl.org/2
tourl.org
.
Reverse DNS lookup
Find out which hostname(s)
resolve to a
given IP or other hostnames for the server
www.reversednslookup.org
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2013 Sascha Nitsch Unternehmensberatung UG(haftungsbeschränkt)
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 4.1 ms