lastlog - examine lastlog file
lastlog formats and prints the contents of the last login log
/var/log/lastlog file. The
login-name, port, and last login time will be printed. The default (no
flags) causes lastlog entries to be printed, sorted by their order in
The options which apply to the lastlog command are:
Print help message and exit.
-t, --time DAYS
Print the lastlog records more recent than DAYS.
-u, --user LOGIN
Print the lastlog record for user with specified LOGIN only.
The -t flag overrides the use of -u.
If the user has never logged in the message
**Never logged in** will be displayed instead of the port and time.
The lastlog file is a database which contains info on the last login of
each user. You should not rotate it. It is a sparse file, so its size
on the disk is much smaller than the one shown by ls -l (which can
indicate a really big file if you have a high UID). You can display its
real size with ls -s.
lastlog logging file
Large gaps in uid numbers will cause the lastlog program to run longer
with no output to the screen (i.e. if mmdf=800 and last uid=170,
program will appear to hang as it processes uid 171-799).
Julianne Frances Haugh (email@example.com)
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