xenial (1) 7zr.1.gz

NAME

       7zr - A file archiver with highest compression ratio

SYNOPSIS

       7zr [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), 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.

       7zr is a stand-alone executable. 7zr handles less archive formats than 7z. 7zr is  a  "light-version"  of
       7za that only handles 7z 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 /usr/share/doc/p7zip/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

       -si    Read data from StdIn (eg: tar cf - directory | 7zr a -si directory.tar.7z)

       -so    Write data to StdOut (eg: 7zr x -so directory.tar.7z | tar xf -)

       -slt   Sets technical mode for l (list) command

       -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 | 7zr a -si directory.tar.7z
        - to restore your backup : 7zr 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 : 7zr 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

       7zr 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

       7zr 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

       7zr 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

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

HTML Documentation

       /usr/share/doc/p7zip/DOCS/MANUAL/index.htm

AUTHOR

       Written for Debian by Mohammed Adnene Trojette.