ACCT(2) ACCT(2) NAME acct - turn accounting on or off SYNOPSIS 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 acct(5). This call is permitted only to the super-user. NOTES Accounting is automatically disabled when the file system the account‐ ing file resides on runs out of space; it is enabled when space once again becomes available. RETURN VALUE On error -1 is returned. The file must exist and the call may be exer‐ cised only by the super-user. It is erroneous to try to turn on accounting when it is already on. ERRORS Acct will fail if one of the following is true: [EPERM] The caller is not the super-user. [ENOTDIR] A component of the path prefix is not a directory. [EINVAL] The pathname contains a character with the high-order bit set. [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters. [ENOENT] The named file does not exist. [EACCES] Search permission is denied for a component of the path prefix, or the path name is not a regular file. [ELOOP] Too many symbolic links were encountered in translating the pathname. [EROFS] The named file resides on a read-only file system. [EFAULT] File points outside the process’s allocated address space. [EIO] An I/O error occurred while reading from or writing to the file system. SEE ALSO acct(5), sa(8) BUGS No accounting is produced for programs running when a crash occurs. In particular non-terminating programs are never accounted for. 4th Berkeley Distribution May 22, 1986 ACCT(2)