AR(1)       (Directory and File Management Utilities)       AR(1)



  NAME
       ar - archive and library maintainer for portable archives

  SYNOPSIS
       ar key [posname] afile [name] ...

  DESCRIPTION
       The ar command maintains groups of files combined into a
       single archive file.  Its main use is to create and update
       library files as used by the link editor.  It can be used,
       though, for any similar purpose.  The magic string and the
       file headers used by ar consist of printable ASCII
       characters.  If an archive is composed of printable files,
       the entire archive is printable.

       When ar creates an archive, it creates headers in a format
       that is portable across all machines.  The portable archive
       format and structure is described in detail in ar(4).  The
       archive symbol table [described in ar(4)] is used by the
       link editor [ld(1)] to effect multiple passes over libraries
       of object files in an efficient manner.  An archive symbol
       table is only created and maintained by ar when there is at
       least one object file in the archive.  The archive symbol
       table is in a specially named file which is always the first
       file in the archive.  This file is never mentioned or
       accessible to the user.  Whenever the ar(1) command is used
       to create or update the contents of such an archive, the
       symbol table is rebuilt.  The s option described below will
       force the symbol table to be rebuilt.

       Unlike command options, the command key is a required part
       of ar's command line.  The key (which may begin with a -) is
       formed with one of the following letters:  drqtpmx.
       Arguments to the key, alternatively, are made with one of
       more of the following set:  vuaibcls.  Posname is an archive
       member name used as a reference point in positioning other
       files in the archive.  Afile is the archive file.  The names
       are constituent files in the archive file.  The meanings of
       the key characters are as follows:



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       d    Delete the named files from the archive file.

       r    Replace the named files in the archive file.  If the
            optional character u is used with r, then only those
            files with dates of modification later than the archive
            files are replaced.  If an optional positioning
            character from the set abi is used, then the posname
            argument must be present and specifies that new files
            are to be placed after (a) or before (b or i) posname.
            Otherwise new files are placed at the end.

       q    Quickly append the named files to the end of the
            archive file.  Optional positioning characters are
            invalid.  The command does not check whether the added
            members are already in the archive.  This option is
            useful to avoid quadratic behavior when creating a
            large archive piece-by-piece.  Unchecked, the file may
            grow exponentially up to the second degree.

       t    Print a table of contents of the archive file.  If no
            names are given, all files in the archive are tabled.
            If names are given, only those files are tabled.

       p    Print the named files in the archive.

       m    Move the named files to the end of the archive.  If a
            positioning character is present, then the posname
            argument must be present and, as in r, specifies where
            the files are to be moved.

       x    Extract the named files.  If no names are given, all
            files in the archive are extracted.  In neither case
            does x alter the archive file.

       The meanings of the key arguments are as follows:

       v    Give a verbose file-by-file description of the making
            of a new archive file from the old archive and the
            constituent files.  When used with t, give a long
            listing of all information about the files.  When used


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            with x, precede each file with a name.

       c    Suppress the message that is produced by default when
            afile is created.

       l    Place temporary files in the local (current working)
            directory rather than in the default temporary
            directory, TMPDIR.

       s    Force the regeneration of the archive symbol table even
            if ar(1) is not invoked with a command which will
            modify the archive contents.  This command is useful to
            restore the archive symbol table after the strip(1)
            command has been used on the archive.

  FILES
       $TMPDIR/*             temporary files

       $TMPDIR is usually /usr/tmp but can be redefined by setting
       the environment variable TMPDIR [see tempnam() in
       tmpnam(3S)].

  SEE ALSO
       ld(1), lorder(1), strip(1), tmpnam(3S), a.out(4), ar(4) in
       the Programmer's Reference Manual.

  NOTES
       If the same file is mentioned twice in an argument list, it
       may be put in the archive twice.













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