EnglishFrenchSpanish

Ad


OnWorks favicon

last - Online in the Cloud

Run last in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command last that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


last, lastb - show a listing of last logged in users

SYNOPSIS


last [options] [username...] [tty...]
lastb [options] [username...] [tty...]

DESCRIPTION


last searches back through the /var/log/wtmp file (or the file designated by the -f
option) and displays a list of all users logged in (and out) since that file was created.
One or more usernames and/or ttys can be given, in which case last will show only the
entries matching those arguments. Names of ttys can be abbreviated, thus last 0 is the
same as last tty0.

When catching a SIGINT signal (generated by the interrupt key, usually control-C) or a
SIGQUIT signal, last will show how far it has searched through the file; in the case of
the SIGINT signal last will then terminate.

The pseudo user reboot logs in each time the system is rebooted. Thus last reboot will
show a log of all the reboots since the log file was created.

lastb is the same as last, except that by default it shows a log of the /var/log/btmp
file, which contains all the bad login attempts.

OPTIONS


-a, --hostlast
Display the hostname in the last column. Useful in combination with the --dns
option.

-d, --dns
For non-local logins, Linux stores not only the host name of the remote host, but
its IP number as well. This option translates the IP number back into a hostname.

-f, --file file
Tell last to use a specific file instead of /var/log/wtmp. The --file option can
be given multiple times, and all of the specified files will be processed.

-F, --fulltimes
Print full login and logout times and dates.

-i, --ip
Like --dns , but displays the host's IP number instead of the name.

-number
-n, --limit number
Tell last how many lines to show.

-p, --present time
Display the users who were present at the specified time. This is like using the
options --since and --until together with the same time.

-R, --nohostname
Suppresses the display of the hostname field.

-s, --since time
Display the state of logins since the specified time. This is useful, e.g., to
easily determine who was logged in at a particular time. The option is often
combined with --until.

-t, --until time
Display the state of logins until the specified time.

--time-format format
Define the output timestamp format to be one of notime, short, full, or iso. The
notime variant will not print any timestamps at all, short is the default, and full
is the same as the --fulltimes option. The iso variant will display the timestamp
in ISO-8601 format. The ISO format contains timezone information, making it
preferable when printouts are investigated outside of the system.

-w, --fullnames
Display full user names and domain names in the output.

-x, --system
Display the system shutdown entries and run level changes.

TIME FORMATS


The options that take the time argument understand the following formats:

YYYYMMDDhhmmss
YYYY-MM-DD hh:mm:ss
YYYY-MM-DD hh:mm (seconds will be set to 00)
YYYY-MM-DD (time will be set to 00:00:00)
hh:mm:ss (date will be set to today)
hh:mm (date will be set to today, seconds to 00)
now
yesterday (time is set to 00:00:00)
today (time is set to 00:00:00)
tomorrow (time is set to 00:00:00)
+5min
-5days

NOTES


The files wtmp and btmp might not be found. The system only logs information in these
files if they are present. This is a local configuration issue. If you want the files to
be used, they can be created with a simple touch(1) command (for example, touch
/var/log/wtmp).

Use last online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Alt-F
    Alt-F
    Alt-F provides a free and open source
    alternative firmware for the DLINK
    DNS-320/320L/321/323/325/327L and
    DNR-322L. Alt-F has Samba and NFS;
    supports ext2/3/4...
    Download Alt-F
  • 2
    usm
    usm
    Usm is a unified slackware package
    manager that handles automatic
    dependency resolution. It unifies
    various package repositories including
    slackware, slacky, p...
    Download usm
  • 3
    Chart.js
    Chart.js
    Chart.js is a Javascript library that
    allows designers and developers to draw
    all kinds of charts using the HTML5
    canvas element. Chart js offers a great
    array ...
    Download Chart.js
  • 4
    iReport-Designer for JasperReports
    iReport-Designer for JasperReports
    NOTE: iReport/Jaspersoft Studio Support
    Announcement: As of version 5.5.0,
    Jaspersoft Studio will be the official
    design client for JasperReports. iReport
    will...
    Download iReport-Designer for JasperReports
  • 5
    PostInstallerF
    PostInstallerF
    PostInstallerF will install all the
    software that Fedora Linux and others
    doesn't include by default, after
    running Fedora for the first time. Its
    easy for...
    Download PostInstallerF
  • 6
    strace
    strace
    The strace project has been moved to
    https://strace.io. strace is a
    diagnostic, debugging and instructional
    userspace tracer for Linux. It is used
    to monitor a...
    Download strace
  • More »

Linux commands

Ad