


      AR(1)                       (bsd 4.2)                       AR(1)



      NAME
           ar - archive and library maintainer

      SYNTAX
           ar key [ posname ] afile name ...

      DESCRIPTION
           Ar maintains an archive file that consists of groups of
           files.  Its main use is to create and update library files
           as used by the loader.  It can be used, though, for any
           similar purpose.

           Afile is the archive file.  The names are constituent files
           in the archive file.  Key is one of the following: (Keys d,
           r, m, q, and s automatically invoke ranlib to add a table of
           contents named __.symdef to the beginning of the archive,
           making the use of ranlib on each archive unnecessary.)

           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 `last-modified' dates 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.  Useful only to
                avoid quadratic behavior when creating a large archive
                piece-by-piece.

           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. Normally the `last-
                modified' date of each extracted file is the date when
                it is extracted. However, if o is used, the `last-



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      AR(1)                       (bsd 4.2)                       AR(1)



                modified' date is reset to the date recorded in the
                archive.

           v    Verbose.  Under the verbose option, ar gives a file-
                by-file description of the making of a new archive file
                from the old archive and the constituent files.  When
                used with t, it gives a long listing of all information
                about the files.  When used with p, it precedes each
                file with a name.

           c    Create.  Normally ar will create afile when it needs
                to.  The create option suppresses the normal message
                that is produced when afile is created.

           l    Local.  Normally ar places its temporary files in the
                directory /tmp.  This option causes them to be placed
                in the local directory.

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

      FILES
           /tmp/v*   temporaries

      SEE ALSO
           lorder(1), ld(1), ranlib(1), ar(4)

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

           The `last-modified' date of a file will not be altered by
           the o option if the user is not the owner of the extracted
           file, or the super-user.



















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