7z(1)			    General Commands Manual			 7z(1)

       7z - A file archiver with high compression ratio format

       7z   	[...	]    [...  ]
       [<@listfiles>... ]

       7-Zip is a file archiver supporting 7z (that implements	LZMA  compres-
       sion  algorithm featuring very high compression ratio), LZMA2, XZ, ZIP,
       Zip64, CAB, RAR (it was removed due a  non-free	license),  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.

       7z uses plugins to handle archives, so it might be slightly slower than
       7za(1) but can handle more archive formats.

       a      Add files to archive

       b      Benchmark

       d      Delete files from archive

       e      Extract files from archive (without using directory names)

       h      Calculate hash values for files

       i      Show information about supported formats

       l      List contents of archive

       rn     Rename files in archive

       t      Test integrity of archive

       u      Update files to archive

       x      eXtract files with full paths

       --     Stop switches parsing

	      Include archives

	      Exclude archives

	      Set Overwrite mode

       -an    Disable archive_name field

	      Set output log level

       -bd    Disable progress indicator

	      Set output stream for output/error/progress line

       -bt    Show execution time statistics

	      Include filenames

	      Set Compression Method (see /usr/share/doc/p7zip/DOC/MANUAL/cmd-
	      line/switches/method.htm	from the p7zip-full package for a list
	      of methods)

	      Set Output directory

	      Set Password (NOTE: this flag does not work with 7zr)

	      Recurse subdirectories (CAUTION: this flag does not do what  you
	      think, avoid using it)

	      Set archive name mode

	      Set charset for for console input/output

	      Set charset for list files

	      Set hash function for x, e, h commands

       -sdel  Delete files after compression

	      Send archive by email

	      Create SFX archive

	      Read  data from stdin (e.g. tar cf - directory | 7z a -si direc-

       -slp   Set Large Pages mode

       -slt   Show technical information for l (List) command

       -snh   Store hard links as links

       -snl   Store symbolic links as links

       -sni   Store NT security information

	      Store NTFS alternate streams

	      Create SFX archive

       -so    Write data to stdout (e.g. 7z x -so directory.tar.7z | tar xf -)

       -spd   Disable wildcard matching for file names

       -spe   Eliminate duplication of root folder for extract command

       -spf   Use fully qualified file paths

	      Set sensitive case mode

       -ssw   Compress shared files

       -stl   Set archive timestamp from the most recently modified file

	      Set CPU thread affinity mask (hexadecimal number)

	      Exclude archive type

	      Set type of archive

	      Update options

	      Create volumes

	      Set working directory. Empty path means a temporary directory

	      Exclude filenames

       -y     Assume Yes on all queries

       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 com-

	      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	 |  7z	a  -si	direc-
	- to restore your backup : 7z 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 : 7z 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")

       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

	      lzma method

       -mx=9  level of compression = 9 (Ultra)

	      number of fast bytes for LZMA = 64

	      dictionary size = 32 megabytes

       -ms=on solid archive = on

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

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

       7zr(1), 7za(1), p7zip(1), bzip2(1), gzip(1), zip(1),

HTML Documentation

       Written for Debian by  Mohammed	Adnene	Trojette.  Updated  by	Robert

7-Zip				March 6th, 2016				 7z(1)

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