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1 | .\" Hey Emacs! This file is -*- nroff -*- source. |
2 | .\" | |
3 | .\" Copyright (c) 1993 Michael Haardt | |
4 | .\" (michael@moria.de), | |
5 | .\" Fri Apr 2 11:32:09 MET DST 1993 | |
6 | .\" | |
7 | .\" This is free documentation; you can redistribute it and/or | |
8 | .\" modify it under the terms of the GNU General Public License as | |
9 | .\" published by the Free Software Foundation; either version 2 of | |
10 | .\" the License, or (at your option) any later version. | |
11 | .\" | |
12 | .\" The GNU General Public License's references to "object code" | |
13 | .\" and "executables" are to be interpreted as the output of any | |
14 | .\" document formatting or typesetting system, including | |
15 | .\" intermediate and printed output. | |
16 | .\" | |
17 | .\" This manual is distributed in the hope that it will be useful, | |
18 | .\" but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | .\" GNU General Public License for more details. | |
21 | .\" | |
22 | .\" You should have received a copy of the GNU General Public | |
23 | .\" License along with this manual; if not, write to the Free | |
24 | .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, | |
25 | .\" USA. | |
26 | .\" | |
27 | .\" Modified 1993-07-22 by Rik Faith <faith@cs.unc.edu> | |
28 | .\" Modified 1993-08-10 by Alan Cox <iiitac@pyramid.swansea.ac.uk> | |
29 | .\" Modified 1998-11-04 by Tigran Aivazian <tigran@sco.com> | |
30 | .\" Modified 2004-05-27, 2004-06-17, 2004-06-23 by Michael Kerrisk | |
31 | .\" | |
3cde6db5 | 32 | .TH ACCT 2 2008-06-16 "Linux" "Linux Programmer's Manual" |
fea681da MK |
33 | .SH NAME |
34 | acct \- switch process accounting on or off | |
35 | .SH SYNOPSIS | |
36 | .ad l | |
37 | .nf | |
38 | .B #include <unistd.h> | |
39 | .sp | |
40 | .BI "int acct(const char *" filename ); | |
41 | .fi | |
42 | .ad b | |
cc4615cc MK |
43 | .sp |
44 | .in -4n | |
45 | Feature Test Macro Requirements for glibc (see | |
46 | .BR feature_test_macros (7)): | |
47 | .in | |
48 | .sp | |
49 | .BR acct (): | |
50 | _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE\ <\ 500) | |
fea681da | 51 | .SH DESCRIPTION |
3cde6db5 | 52 | The |
61792fc6 | 53 | .BR acct () |
3cde6db5 MK |
54 | system call enables or disables process accounting. |
55 | If called with the name of an existing file as its argument, | |
56 | accounting is turned on, | |
57 | and records for each terminating process are appended to | |
c13182ef MK |
58 | \fIfilename\fP as it terminates. |
59 | An argument of NULL causes accounting to be turned off. | |
fea681da | 60 | .SH "RETURN VALUE" |
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61 | On success, zero is returned. |
62 | On error, \-1 is returned, and | |
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63 | .I errno |
64 | is set appropriately. | |
65 | .SH ERRORS | |
66 | .TP | |
67 | .B EACCES | |
68 | Write permission is denied for the specified file, | |
69 | or search permission is denied for one of the directories | |
70 | in the path prefix of | |
71 | .I filename | |
72 | (see also | |
ad7cc990 | 73 | .BR path_resolution (7)), |
fea681da MK |
74 | or |
75 | .I filename | |
76 | is not a regular file. | |
77 | .TP | |
78 | .B EFAULT | |
79 | .I filename | |
80 | points outside your accessible address space. | |
81 | .TP | |
82 | .B EIO | |
83 | Error writing to the file | |
84 | .IR filename . | |
85 | .TP | |
86 | .B EISDIR | |
c13182ef | 87 | .I filename |
fea681da MK |
88 | is a directory. |
89 | .TP | |
90 | .B ELOOP | |
c13182ef | 91 | Too many symbolic links were encountered in resolving |
fea681da MK |
92 | .IR filename . |
93 | .TP | |
94 | .B ENAMETOOLONG | |
95 | .I filename | |
96 | was too long. | |
97 | .TP | |
98 | .B ENFILE | |
99 | The system limit on the total number of open files has been reached. | |
100 | .TP | |
101 | .B ENOENT | |
102 | The specified filename does not exist. | |
103 | .TP | |
104 | .B ENOMEM | |
105 | Out of memory. | |
106 | .TP | |
107 | .B ENOSYS | |
108 | BSD process accounting has not been enabled when the operating system | |
109 | kernel was compiled. | |
110 | The kernel configuration parameter controlling this feature is | |
682edefb | 111 | .BR CONFIG_BSD_PROCESS_ACCT . |
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112 | .TP |
113 | .B ENOTDIR | |
c13182ef MK |
114 | A component used as a directory in |
115 | .I filename | |
fea681da MK |
116 | is not in fact a directory. |
117 | .TP | |
118 | .B EPERM | |
119 | The calling process has insufficient privilege to enable process accounting. | |
120 | On Linux the | |
121 | .B CAP_SYS_PACCT | |
122 | capability is required. | |
123 | .TP | |
124 | .B EROFS | |
c13182ef | 125 | .I filename |
fea681da MK |
126 | refers to a file on a read-only file system. |
127 | .TP | |
128 | .B EUSERS | |
129 | There are no more free file structures or we ran out of memory. | |
130 | .SH "CONFORMING TO" | |
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131 | SVr4, 4.3BSD (but not POSIX). |
132 | .\" SVr4 documents an EBUSY error condition, but no EISDIR or ENOSYS. | |
97c1eac8 MK |
133 | .\" Also AIX and HP-UX document EBUSY (attempt is made |
134 | .\" to enable accounting when it is already enabled), as does Solaris | |
135 | .\" (attempt is made to enable accounting using the same file that is | |
136 | .\" currently being used). | |
fea681da | 137 | .SH NOTES |
3cde6db5 | 138 | No accounting is produced for programs running when a system crash occurs. |
c382a365 | 139 | In particular, non-terminating processes are never accounted for. |
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140 | |
141 | The structure of the records written to the accounting file is described in | |
142 | .BR acct (5). | |
65c06b4e | 143 | .SH "SEE ALSO" |
cbc2a267 | 144 | .BR acct (5) |