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acct(2)								       acct(2)

Name
       acct - turn accounting on or off

Syntax
       acct(file)
       char *file;

Description
       The system is prepared to write a record	in an accounting file for each
       process as it terminates.  This call,  with  a  null-terminated	string
       naming  an  existing file as argument, turns on accounting; records for
       each terminating	process	are appended to	file.  An argument of 0	causes
       accounting to be	turned off.

       The accounting file format is given in

       This  call is permitted only to the superuser.  Accounting is automati-
       cally disabled when the file system the accounting file resides on runs
       out of space.  It is enabled when space once again becomes available.

Return Values
       On  error,  -1  is  returned.   The file	must exist and the call	may be
       exercised only by the superuser.	 It is erroneous to  try  to  turn  on
       accounting when it is already on.  If successful, 0 is returned.

Diagnostics
       The system call will fail if one	of the following is true:

       [EPERM]	      The caller is not	the superuser.

       [ENOTDIR]      A	component of the path prefix is	not a directory.

       [ENAMETOOLONG] A	component of a pathname	exceeded 255 characters, or an
		      entire pathname exceeded 1023 characters.

       [ENOENT]	      The named	file does not exist.

       [EACCES]	      The path name is not a regular file.

       [EROFS]	      The named	file resides on	a read-only file system.

       [EFAULT]	      The file points outside the process's allocated  address
		      space.

       [ELOOP]	      Too  many	symbolic links were encountered	in translating
		      the pathname.

       [EIO]	      An I/O error occurred while reading from or  writing  to
		      the file system.

Restrictions
       No accounting is	produced for programs running when a crash occurs.  In
       particular, nonterminating programs are never accounted for.

See Also
       acct(5),	sa(8)

								       acct(2)

Name | Syntax | Description | Return Values | Diagnostics | Restrictions | See Also

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