1LAST(1) General Commands Manual LAST(1)
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6 last - indicate last logins of users and teletypes
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9 last [ -f filename ] [ -N ] [ name ... ] [ tty ... ]
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12 Last will look back in the wtmp file which records all logins and
13 logouts for information about a user, a teletype or any group of users
14 and teletypes. Arguments specify names of users or teletypes of inter‐
15 est. Names of teletypes may be given fully or abbreviated. For exam‐
16 ple `last 0' is the same as `last tty0'. If multiple arguments are
17 given, the information which applies to any of the arguments is
18 printed. For example `last root console' would list all of "root's"
19 sessions as well as all sessions on the console terminal. Last will
20 print the sessions of the specified users and teletypes, most recent
21 first, indicating the times at which the session began, the duration of
22 the session, and the teletype which the session took place on. If the
23 session is still continuing or was cut short by a reboot, last so indi‐
24 cates.
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26 The pseudo-user reboot logs in at reboots of the system, thus
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28 last reboot
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30 will give an indication of mean time between reboot.
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32 Last with no arguments prints a record of all logins and logouts, in
33 reverse order. The -f filename option allows the user to examine an
34 alternate wtmp file. The -N option limits the report to N lines.
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36 If last is interrupted, it indicates how far the search has progressed
37 in wtmp. If interrupted with a quit signal (generated by a control-\)
38 last indicates how far the search has progressed so far, and the search
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42 /usr/adm/wtmp login data base
43 /usr/adm/shutdownlog which records shutdowns and reasons for same
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46 wtmp(5), ac(8), lastcomm(1)
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49 Howard Katseff
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534th Berkeley Distribution April 29, 1985 LAST(1)