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ACCT(2) Linux Programmer's Manual ACCT(2)
acct - switch process accounting on or off
int acct(const char *filename);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
acct(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
The acct() system call enables or disables process accounting. If called with the name of
an existing file as its argument, accounting is turned on, and records for each terminat-
ing process are appended to filename as it terminates. An argument of NULL causes
accounting to be turned off.
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
EACCES Write permission is denied for the specified file, or search permission is denied
for one of the directories in the path prefix of filename (see also path_resolu-
tion(7)), or 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.
filename was too long.
ENFILE The system limit on the total number of open files has been reached.
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-
A component used as a directory in filename is not in fact a directory.
EPERM The calling process has insufficient privilege to enable process accounting. On
Linux the CAP_SYS_PACCT capability is required.
EROFS filename refers to a file on a read-only filesystem.
EUSERS There are no more free file structures or we ran out of memory.
SVr4, 4.3BSD (but not POSIX).
No accounting is produced for programs running when a system crash occurs. In particular,
nonterminating processes are never accounted for.
The structure of the records written to the accounting file is described in acct(5).
This page is part of release 3.55 of the Linux man-pages project. A description of the
project, and information about reporting bugs, can be found at
Linux 2008-06-16 ACCT(2)
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