p7zip(1)


NAME

   p7zip - Wrapper on 7-Zip file archiver with high compression ratio

SYNOPSIS

   p7zip      [-c|--stdout|--to-stdout]     [-d|--decompress|--uncompress]
   [-f|--force] [-h|--help] [-k|--keep] [--] [file ...]

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.

   p7zip is a gzip-like CLI wrapper script for 7-Zip, and handles only the
   7z format (the native format of  7-Zip),  internally  executing  either
   7za(1) or 7zr(1) command.

   With  no  switches passed in the command line, each given file argument
   is compressed into file.7z, and then removed.

   With the -d switch each passed file needs to end with the .7z extension
   and  is  decompressed.  After  the  decompression  the original file is
   removed unless it contained more than one archived file.

   When used without any file argument, p7zip reads data from the standard
   input  and  compresses  (or  decompresses  in  case  of -d) it into the
   standard output.

SWITCHES

   -c, --stdout, --to-stdout
          Write output on standard output.

   -d, --decompress, --uncompress
          Decompress file.

   -f, --force
          Skip some checks and force compression or decompression.

   -h, --help
          Print usage.

   -k, --keep
          Do not delete input file.

   --     Treat all subsequent arguments as file names, even if they start
          with a dash.

SEE ALSO

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

AUTHOR

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





Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.