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 pro-
       cess  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
       ENOSYS  The accounting kit has not been installed.

CONFORMING TO
       SVr4  (but  not  POSIX).   SVr4  documents  EACCES, EBUSY,
       EFAULT, ELOOP, ENAMETOOLONG, ENOTDIR,  ENOENT,  EPERM  and
       EROFS error conditions, but no ENOSYS.

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