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RedHat 9 (Linux i386) - man page for acct (redhat section 2)

ACCT(2) 			    Linux Programmer's Manual				  ACCT(2)

NAME
       acct - switch process accounting on or off

SYNOPSIS
       #include <unistd.h>

       int acct(const char *filename);

DESCRIPTION
       When  called  with  the	name  of  an  existing file as argument, accounting is turned on,
       records for each terminating process are appended to filename as it terminates.	An  argu-
       ment of NULL causes accounting to be turned off.

RETURN VALUE
       On success, zero is returned.  On error, -1 is returned, and errno is set appropriately.

ERRORS
       EACCES Write permission is denied for the specified file.

       EACCES The argument filename is not a regular file.

       EFAULT filename points outside your accessible address space.

       EIO    Error writing to the file filename.

       EISDIR filename is a directory.

       ELOOP  Too many symbolic links were encountered in resolving filename.

       ENAMETOOLONG
	      filename was too long.

       ENOENT The specified filename does not exist.

       ENOMEM Out of memory.

       ENOSYS BSD  process  accounting	has not been enabled when the operating system kernel was
	      compiled.  The kernel configuration parameter  controlling  this	feature  is  CON-
	      FIG_BSD_PROCESS_ACCT.

       ENOTDIR
	      A component used as a directory in filename is not in fact a directory.

       EPERM  The calling process has no permission to enable process accounting.

       EROFS  filename refers to a file on a read-only file system.

       EUSERS There are no more free file structures or we ran out of memory.

CONFORMING TO
       SVr4  (but  not POSIX).	SVr4 documents an EBUSY error condition, but no EISDIR or ENOSYS.
       Also AIX and HPUX document EBUSY (attempt is made to enable accounting when it is  already
       enabled),  as  does Solaris (attempt is made to enable accounting using the same file that
       is currently being used).

NOTES
       No accounting is produced for programs running when a crash occurs.  In	particular,  non-
       terminating processes are never accounted for.

Linux 2.1.126				    1998-11-04					  ACCT(2)


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