projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a343bbd7 KM |
1 | .\" @(#)wtmp.5 4.1 (Berkeley) %G% |
| 2 | .\" | |
| 3 | .TH WTMP 5 | |
| 4 | .AT 3 | |
| 5 | .tr || | |
| 6 | .SH NAME | |
| 7 | wtmp \- user login history | |
| 8 | .SH DESCRIPTION | |
| 9 | This | |
| 10 | file records all logins and logouts. | |
| 11 | Its format is exactly like | |
| 12 | .IR utmp (5) | |
| 13 | except that | |
| 14 | a null user name indicates a logout on the associated | |
| 15 | typewriter. | |
| 16 | Furthermore, the typewriter name `~' indicates that the | |
| 17 | system was rebooted at the indicated time; | |
| 18 | the adjacent pair of entries with typewriter names | |
| 19 | `|' and `}' indicate the system-maintained time | |
| 20 | just before and just after a | |
| 21 | .I date | |
| 22 | command has changed the system's idea of the time. | |
| 23 | .PP | |
| 24 | .I Wtmp | |
| 25 | is maintained by | |
| 26 | .IR login (1) | |
| 27 | and | |
| 28 | .IR init (8). | |
| 29 | Neither of these programs creates the file, | |
| 30 | so if it is removed record-keeping is turned off. | |
| 31 | It is summarized by | |
| 32 | .IR ac (1). | |
| 33 | .SH FILES | |
| 34 | /usr/adm/wtmp | |
| 35 | .SH "SEE ALSO" | |
| 36 | utmp(5), login(1), init(8), ac(1), who(1) |