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UNIX in a Nutshell: System V Edition

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UNIX Commands
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ar



ar

 [

-V

] 

key

 [

args

] [

posname

] 

archive

  [

files

]

Maintain a group of files that are combined into a file archive . Used most commonly to create and update library files as used by the link editor ( ld ). Only one key letter may be used, but each can be combined with additional args (with no separations between). posname is the name of a file in archive . When moving or replacing files , you can specify that they be placed before or after posname . See lorder for another example. -V prints the version number of ar on standard error.

Key

d

Delete files from archive .

m

Move files to end of archive .

p

Print files in archive .

q

Append files to archive .

r

Replace files in archive .

t

List the contents of archive or list the named files .

x

Extract contents from archive or only the named files .

Args

a

Use with r or m to place files in the archive after posname .

b

Same as a but before posname .

c

Create archive silently.

i

Same as b .

l

Place temporary files in local directory rather than /tmp (SVR3 only).

s

Force regeneration of archive symbol table (useful after running strip or mcs ).

u

Use with r to replace only files that have changed since being put in archive .

v

Verbose; print a description.

Example

Replace mylib.a with object files from the current directory:



ar r mylib.a `ls *.o`


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