Manual dla 7z
P7ZIP(1) P7ZIP(1)NAME
7-Zip - 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 pro-
gram 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
-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 direc-
tory.tar.7z)
-so Write data to StdOut (eg: 7z x -so directory.tar.7z | tar xf -)
-slt Sets technical mode for l (list) command
-t{{Type}
Type of archive
-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
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 direc-
tory.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")
MORE EXAMPLES
You will find more examples in /usr/share/doc/p7zip/DOCS/MANUAL.
SEE ALSO
7za(1) 7zr(1)
AUTHOR
Written for Debian by Mohammed Adnene Trojette.
Mohammed Adnene Trojette October 31 2004 P7ZIP(1)