Provided by: p7zip-full_16.02+dfsg-7_amd64 bug

NAME

       7z - A file archiver with high compression ratio format

SYNOPSIS

       7z <command> [<switches>... ] <archive_name> [<file_names>... ] [<@listfiles>... ]

DESCRIPTION

       7-Zip  is  a  file  archiver  supporting  7z  (that  implements LZMA compression algorithm
       featuring very high compression ratio), 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.

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

COMMANDS

       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

SWITCHES

       --     Stop switches parsing

       -ai[r[-|0]]{@listfile|!wildcard}
              Include archives

       -ax[r[-|0]]{@listfile|!wildcard}
              Exclude archives

       -ao{a|s|t|u}
              Set Overwrite mode

       -an    Disable archive_name field

       -bb[0-3]
              Set output log level

       -bd    Disable progress indicator

       -bs{o|e|p}{0|1|2}
              Set output stream for output/error/progress line

       -bt    Show execution time statistics

       -i[r[-|0]]{@listfile|!wildcard}
              Include filenames

       -m{Parameters}
              Set                   Compression                    Method                    (see
              /usr/share/doc/p7zip/DOC/MANUAL/cmdline/switches/method.htm   from  the  p7zip-full
              package for a list of methods)

       -o{Directory}
              Set Output directory

       -p{Password}
              Set Password (NOTE: this flag does not work with 7zr)

       -r[-|0]
              Recurse subdirectories (CAUTION: this flag does not do what you think, avoid  using
              it)

       -sa{a|e|s}
              Set archive name mode

       -scc{UTF-8|WIN|DOS}
              Set charset for for console input/output

       -scs{UTF-8|UTF-16LE|UTF-16BE|WIN|DOS|{id}}
              Set charset for list files

       -scrc[CRC32|CRC64|SHA1|SHA256|*]
              Set hash function for x, e, h commands

       -sdel  Delete files after compression

       -seml[.]
              Send archive by email

       -sfx[{name}]
              Create SFX archive

       -si[{name}]
              Read data from stdin (e.g. tar cf - directory | 7z a -si directory.tar.7z)

       -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

       -sns[-]
              Store NTFS alternate streams

       -sfx[{name}]
              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

       -ssc[-]
              Set sensitive case mode

       -ssw   Compress shared files

       -stl   Set archive timestamp from the most recently modified file

       -stm{HexMask}
              Set CPU thread affinity mask (hexadecimal number)

       -stx{Type}
              Exclude archive type

       -t{Type}
              Set type of archive

       -u[-][p#][q#][r#][x#][y#][z#][!newArchiveName]
              Update options

       -v{Size}[b|k|m|g]
              Create volumes

       -w[path]
              Set working directory. Empty path means a temporary 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 | 7z a -si directory.tar.7z
        - 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")

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

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

HTML Documentation

       /usr/share/doc/p7zip-full/DOC/MANUAL/start.htm

AUTHOR

       Written for Debian by Mohammed Adnene Trojette. Updated by Robert Luberda.