Lastlog

lastlog is a program available on most Linux distributions. It formats and prints the contents of the last login log file, /var/log/lastlog (which is a usually a very sparse file), including the login name, port, and last login date and time. It is similar in functionality to the BSD program last, also included in linux distributions; however, last parses a different binary database file (/var/log/wtmp and /var/log/btmp).

Usage

Lastlog prints its output in column format with login-name, port, and last-login-time of each and every user on the system mentioned in that order. The users are sorted by default according to the order in /etc/passwd However, it can also be used to modify the records kept in /var/log/lastlog.

$ lastlog
Username         Port     From             Latest
root                                       **Never logged in**
user            tty3                        Sun Jan 14 16:29:24 +0130 2019
gollark: apioforms.
gollark: I just assume my code can never fail.
gollark: Imagine having code which is able to error.
gollark: Alternately, I can program the bot to have some sort of ++emoji command.
gollark: You should add all heavserver bismuth emojis here.
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