GNU/Linux man pages
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Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 7.5.0(Wheezy) |
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7za(1) |
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7za − A file archiver with highest compression ratio
7za [adeltux] [-] [SWITCH] <ARCHIVE_NAME> <ARGUMENTS>...
7-Zip is a file
archiver with the highest compression ratio. The program
supports 7z (that implements LZMA compression algorithm),
LZMA2, XZ, ZIP, Zip64, CAB, RAR (if the non-free p7zip-rar
package is installed), ARJ, GZIP, BZIP2, TAR, CPIO, RPM,
ISO, most filesystem images and DEB formats. Compression
ratio in the new 7z format is 30-50% better than ratio in
ZIP format.
7za is a stand-alone executable. 7za handles less archive
formats than
7z.
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a |
Add |
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d |
Delete |
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e |
Extract |
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l |
List |
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t |
Test |
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u |
Update |
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x |
eXtract with full paths |
−ai[r[-|0]]{@listfile|!wildcard}
Include archives
−ax[r[-|0]]{@listfile|!wildcard}
eXclude archives
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−bd |
Disable percentage indicator |
−i[r[-|0]]{@listfile|!wildcard}
Include filenames
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−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 /usr/share/doc/p7zip-full/DOCS/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
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−si |
Read data from StdIn (eg: tar cf − directory | 7za a −si directory.tar.7z) | ||
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−so |
Write data to StdOut (eg: % echo foo | 7z a dummy −tgzip −si −so > /dev/null) | ||
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−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
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−y |
Assume Yes on all queries |
7-Zip returns the following exit codes:
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0 |
Normal (no errors or warnings detected) | ||
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1 |
Warning (Non fatal error(s)). For example, some files cannot be read during compressing. So they were not compressed | ||
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2 |
Fatal error | ||
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7 |
Bad command line parameters | ||
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8 |
Not enough memory for operation | ||
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255 |
User stopped the process with control-C (or similar) |
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")
7za 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"
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−t7z |
7z archive |
−m0=lzma
lzma method
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−mx=9 |
level of compression = 9 (Ultra) |
−mfb=64
number of fast bytes for LZMA = 64
−md=32m
dictionary size = 32 megabytes
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−ms=on |
solid archive = on |
7za a −sfx archive.exe dir1
add all files from directory "dir1" to SFX archive archive.exe (Remark : SFX archive MUST end with ".exe")
7za 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)
7z(1), 7zr(1), bzip2(1), gzip(1), zip(1)
/usr/share/doc/p7zip-full/DOCS/MANUAL/index.htm
Written for Debian by Mohammed Adnene Trojette.
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7za(1) | |