LAST(1) COMMAND REFERENCE LAST(1) NAME last - indicate last logins of users and teletypes SYNOPSIS last [ -number ] [ -ffile ] [ ~ ] [ username... ] [ tty... ] DESCRIPTION The last command prints records from the wtmp(5) file of all logins and logouts for users, teletypes, or any group of users and teletypes. Arguments specify names of users or teletypes of interest. If multiple arguments are given, the information that applies to any of the arguments is printed. For example, the command last root console lists all root's sessions as well as all sessions on the console terminal. With no arguments, last prints a record of all logins and logouts, in reverse order. With the ~ argument last prints information about all shutdowns and reboots. Names of teletypes may be given fully or abbreviated. For example, the command last 0 is the same as the command last tty0. The last command prints the sessions of the specified users and teletypes, most recent first, indicating the times at which the session began, the duration of the session, and the teletype which the session took place on. If the session is still continuing or was cut short by a reboot, last so indicates. If last is interrupted, it indicates how far the search has progressed in wtmp(5). If interrupted with a quit signal (generated by a control-\) last indicates how far the search has progressed and the search continues. OPTIONS -number List the first number lines that match the specified arguments. For example, last -3 bob lists the last three logins for bob. -ffile Use file as login data base instead of /usr/adm/wtmp. This option is often used to look at an old wtmp file when wtmp file aging is used. EXAMPLES The following invocation lists the information described above for the tty p6. The information provided is for users that have logged onto the tty p6. Printed 4/6/89 1
LAST(1) COMMAND REFERENCE LAST(1) last p6 Since the pseudo-user reboot logs in at reboots of the system, the command: last reboot gives an indication of mean time between reboots. FILES /usr/adm/wtmp login data base /usr/adm/shutdownlog which records shutdowns and reasons for same RETURN VALUE [NO_ERRS] Command completed without error. [P_ERR] A system error occurred. Execution terminated. See intro(2) for more information on system errors. SEE ALSO who(1), finger(1n), and wtmp(5). Printed 4/6/89 2
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