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33 .Nd show last commands executed
45 utility gives information on previously executed commands.
48 prints information about all the commands recorded
49 during the current accounting file's lifetime.
51 The following options are available:
52 .Bl -tag -width indent
54 Print the time the process exited.
56 Print the time the process started.
58 Print the amount of cpu time used by the process.
60 Print the amount of elapsed time used by the process.
62 Print the amount of system time used by the process.
64 Print the amount of user time used by the process.
68 rather than the default
69 .Pa /var/account/acct .
75 reads accounting entries from the standard input.
78 An operand with a leading plus sign
80 is followed a user-defined format string which specifies the format
81 in which to display the process's start or exit date and time.
82 The format string may contain any of the conversion specifications
85 manual page, as well as arbitrary text.
87 If no options are specified,
92 is invoked with arguments, only accounting entries with a
104 .Dl lastcomm a.out root ttyd0
106 would produce a listing of all the
107 executions of commands named
114 For each process entry, the following are printed.
116 .Bl -bullet -offset indent -compact
118 The name of the user who ran the process.
120 Flags, as accumulated by the accounting facilities in the system.
122 The command name under which the process was called.
133 time used by the process (in seconds).
135 The time the process started
141 The flags are encoded as follows: ``S'' indicates the command was
142 executed by the super-user, ``F'' indicates the command ran after
143 a fork, but without a following
145 .\" ``C'' indicates the command was run in PDP-11 compatibility mode
147 ``D'' indicates the command terminated with the generation of a
149 file, and ``X'' indicates the command was terminated with a signal.
151 By default, accounting entries are printed going backwards in time,
152 starting from the time
157 reads entries from its standard input, then entries are printed in
158 the order they are read.
160 .Bl -tag -width /var/account/acct -compact
161 .It Pa /var/account/acct
162 default accounting file
167 will print the exit time and elapsed time of each command logged in
168 .Pa /var/account/acct ,
170 .Dl tail -f -c 0 /var/account/acct | lastcomm -f -
171 will print details of each terminating command.