acct — switch process accounting on or off
#include <unistd.h>
int
acct( |
const char * | filename) ; |
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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
argument of NULL causes accounting to be turned off.
On success, zero is returned. On error, −1 is
returned, and errno
is set
appropriately.
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_resolution(7)),
or filename
is
not a regular file.
filename
points outside your accessible address space.
Error writing to the file filename
.
filename
is
a directory.
Too many symbolic links were encountered in
resolving filename
.
filename
was
too long.
The system limit on the total number of open files has been reached.
The specified filename does not exist.
Out of memory.
BSD process accounting has not been enabled when the
operating system kernel was compiled. The kernel
configuration parameter controlling this feature is
CONFIG_BSD_PROCESS_ACCT
.
A component used as a directory in filename
is not in fact a
directory.
The calling process has insufficient privilege to
enable process accounting. On Linux the CAP_SYS_PACCT
capability is
required.
filename
refers to a file on a read-only file system.
There are no more free file structures or we ran out of memory.
No accounting is produced for programs running when a crash occurs. In particular, non-terminating processes are never accounted for.