AR(CP) XENIX System V AR(CP)
Name
ar - Maintains archives and libraries.
Syntax
ar key [ posname ] afile name ...
Description
ar 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 though it can be used for any
similar purpose.
key is one character from the set drqtpmx, optionally
concatenated with one or more of vuaibcln. afile is the
archive file. The names are constituent files in the
archive file. The posname is the name of a constituent
file, and is required when certain keys are used. The
meanings of the key characters are:
d Deletes the named files from the archive file.
r Replaces the named files in the archive file. If the
optional character u is used with r, then only those
files with 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 appends 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 Prints 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 Prints the named files in the archive.
m Moves 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 Extracts the named files. If no names are given, all
files in the archive are extracted. Unless the
optional character n is used with x, an extracted
file's modification date will be set to the date stored
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AR(CP) XENIX System V AR(CP)
in that file's archive header. In neither case does x
alter the archive file.
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 x, 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.
n New. When used with the key character x it sets the
extracted file's modification date to the current date.
When ar creates an archive, it always creates the header in
the format of the local system (see ar(F)).
Files
/tmp/v* Temporary files
See Also
ld(CP), lorder(CP), ar(F)
Notes
If the same file is mentioned twice in an argument list, it
may be put in the archive twice.
Failure to process a library with ranlib, or failure to
reprocess a library with ranlib, will cause ld to fail.
Because generation of a library by ar and randomization by
ranlib are separate, phase errors are possible. The loader
ld warns when the modification date of a library is more
recent than the creation of its dictionary; but this means
you get the warning even if you only copy the library.
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