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32 .\" From: @(#)lastcomm.1 8.1 (Berkeley) 6/6/93
33 .\" $FreeBSD: src/usr.bin/lastcomm/lastcomm.1,v 1.13.8.1 2007/04/18 05:53:50 dds Exp $
34 .\" $DragonFly: src/usr.bin/lastcomm/lastcomm.1,v 1.3 2008/05/02 02:05:07 swildner Exp $
41 .Nd show last commands executed
52 utility gives information on previously executed commands.
55 prints information about all the commands recorded
56 during the current accounting file's lifetime.
58 The following options are available:
59 .Bl -tag -width indent
61 Print the time the process exited.
63 Print the time the process started.
65 Print the amount of cpu time used by the process.
67 Print the amount of elapsed time used by the process.
69 Print the amount of system time used by the process.
71 Print the amount of user time used by the process.
75 rather than the default
76 .Pa /var/account/acct .
82 reads accounting entries from the standard input.
85 If no options are specified,
90 is invoked with arguments, only accounting entries with a
102 .Dl lastcomm a.out root ttyd0
104 would produce a listing of all the
105 executions of commands named
112 For each process entry, the following are printed.
114 .Bl -bullet -offset indent -compact
116 The name of the user who ran the process.
118 Flags, as accumulated by the accounting facilities in the system.
120 The command name under which the process was called.
131 time used by the process (in seconds).
133 The time the process started
139 The flags are encoded as follows: ``S'' indicates the command was
140 executed by the super-user, ``F'' indicates the command ran after
141 a fork, but without a following
143 .\" ``C'' indicates the command was run in PDP-11 compatibility mode
145 ``D'' indicates the command terminated with the generation of a
147 file, and ``X'' indicates the command was terminated with a signal.
149 By default, accounting entries are printed going backwards in time,
150 starting from the time
155 reads entries from its standard input, then entries are printed in
156 the order they are read.
158 .Bl -tag -width /var/account/acct -compact
159 .It Pa /var/account/acct
160 default accounting file
165 will print the exit time and elapsed time of each command logged in
166 .Pa /var/account/acct ,
168 .Dl tail -f -c 0 /var/account/acct | lastcomm -f -
169 will print details of each terminating command.