PAR(1p) 						User Contributed Perl Documentation						   PAR(1p)

NAME

       par.pl - Make and run Perl Archives

SYNOPSIS

       (Please see pp for convenient ways to make self-contained executables, scripts or PAR archives from perl programs.)

       To make a PAR distribution from a CPAN module distribution:

	   % par.pl -p		       # make a PAR dist under the current path
	   % par.pl -p Foo-0.01        # assume unpacked CPAN dist in Foo-0.01/

       To manipulate a PAR distribution:

	   % par.pl -i Foo-0.01-i386-freebsd-5.8.0.par # install
	   % par.pl -i http://foo.com/Foo-0.01	       # auto-appends archname + perlver
	   % par.pl -i cpan://AUTRIJUS/PAR-0.74        # uses CPAN author directory
	   % par.pl -u Foo-0.01-i386-freebsd-5.8.0.par # uninstall
	   % par.pl -s Foo-0.01-i386-freebsd-5.8.0.par # sign
	   % par.pl -v Foo-0.01-i386-freebsd-5.8.0.par # verify

       To use Hello.pm from ./foo.par:

	   % par.pl -A./foo.par -MHello
	   % par.pl -A./foo -MHello    # the .par part is optional

       Same thing, but search foo.par in the @INC;

	   % par.pl -Ifoo.par -MHello
	   % par.pl -Ifoo -MHello      # ditto

       Run test.pl or script/test.pl from foo.par:

	   % par.pl foo.par test.pl    # looks for 'main.pl' by default,
				       # otherwise run 'test.pl'

       To make a self-containing script containing a PAR file :

	   % par.pl -O./foo.pl foo.par
	   % ./foo.pl test.pl	       # same as above

       To embed the necessary non-core modules and shared objects for PAR's execution (like "Zlib", "IO", "Cwd", etc), use the -b flag:

	   % par.pl -b -O./foo.pl foo.par
	   % ./foo.pl test.pl	       # runs anywhere with core modules installed

       If you also wish to embed core modules along, use the -B flag instead:

	   % par.pl -B -O./foo.pl foo.par
	   % ./foo.pl test.pl	       # runs anywhere with the perl interpreter

       This is particularly useful when making stand-alone binary executables; see pp for details.

DESCRIPTION

       This stand-alone command offers roughly the same feature as "perl -MPAR", except that it takes the pre-loaded .par files via "-Afoo.par"
       instead of "-MPAR=foo.par".

       Additionally, it lets you convert a CPAN distribution to a PAR distribution, as well as manipulate such distributions.  For more
       information about PAR distributions, see PAR::Dist.

   Binary PAR loader (parl)
       If you have a C compiler, or a pre-built binary package of PAR is available for your platform, a binary version of par.pl will also be
       automatically installed as parl.  You can use it to run .par files:

	   # runs script/run.pl in archive, uses its lib/* as libraries
	   % parl myapp.par run.pl     # runs run.pl or script/run.pl in myapp.par
	   % parl otherapp.pl	       # also runs normal perl scripts

       However, if the .par archive contains either main.pl or script/main.pl, it is used instead:

	   % parl myapp.par run.pl     # runs main.pl, with 'run.pl' as @ARGV

       Finally, the "-O" option makes a stand-alone binary executable from a PAR file:

	   % parl -B -Omyapp myapp.par
	   % ./myapp		       # run it anywhere without perl binaries

       With the "--par-options" flag, generated binaries can act as "parl" to pack new binaries:

	   % ./myapp --par-options -Omyap2 myapp.par   # identical to ./myapp
	   % ./myapp --par-options -Omyap3 myap3.par   # now with different PAR

   Stand-alone executable format
       The format for the stand-alone executable is simply concatenating the following elements:

       o   The executable itself

	   Either in plain-text (par.pl) or native executable format (parl or parl.exe).

       o   Any number of embedded files

	   These are typically used for bootstrapping PAR's various XS dependencies.  Each section contains:

	   The magic string ""FILE""
	   Length of file name in "pack('N')" format plus 9
	   8 bytes of hex-encoded CRC32 of file content
	   A single slash (""/"")
	   The file name (without path)
	   File length in "pack('N')" format
	   The file's content (not compressed)
       o   One PAR file

	   This is just a zip file beginning with the magic string ""PK0304"".

       o   Ending section

	   The pre-computed cache name.  A pack('Z40') string of the value of -T (--tempcache) or the hash of the file, followed by "CACHE".
	   The hash of the file is calculated with Digest::SHA, Digest::SHA1, or Digest::MD5.  If none of those modules is available, the "mtime"
	   of the file is used.

	   A pack('N') number of the total length of FILE and PAR sections, followed by a 8-bytes magic string: ""12PAR.pm12"".

SEE ALSO

       PAR, PAR::Dist, parl, pp

AUTHORS

       Audrey Tang <cpan@audreyt.org>, Steffen Mueller <smueller@cpan.org>

       <http://par.perl.org/> is the official PAR website.  You can write to the mailing list at <par@perl.org>, or send an empty mail to
       <par-subscribe@perl.org> to participate in the discussion.

       Please submit bug reports to <bug-par@rt.cpan.org>.

COPYRIGHT

       Copyright 2002-2009 by Audrey Tang <cpan@audreyt.org>.

       Neither this program nor the associated parl program impose any licensing restrictions on files generated by their execution, in accordance
       with the 8th article of the Artistic License:

	   "Aggregation of this Package with a commercial distribution is
	   always permitted provided that the use of this Package is embedded;
	   that is, when no overt attempt is made to make this Package's
	   interfaces visible to the end user of the commercial distribution.
	   Such use shall not be construed as a distribution of this Package."

       Therefore, you are absolutely free to place any license on the resulting executable, as long as the packed 3rd-party libraries are also
       available under the Artistic License.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.14.2							    2011-03-22								   PAR(1p)