Simple Ways to Find User Account Info and Login Details in Linux

In this article, we will learn the Simple ways to find User Account info and Login details in Linux. Here we’ll portray commands to get a user’s account details, show login details just as the thing users are doing on the system.

On the off chance that you need to add users in Linux, use the useradd utility, and to modify or change any attributes of an all-around made user account, use the usermod by means of the command line as clarified in the following guides:

Also Read – 1) How to Create and Manage Users Using Useradd Linux Command                      2) Best Linux Usermod Command With Examples

Simple Ways to Find User Account Info and Login Details in Linux

We’ll begin by seeing commands to discover a user’s account data, at that point continue to disclose commands to see login details.

1. id Command

the id is a basic command-line utility for showing a genuine and powerful user and group IDs as follows.

$ id itsmarttricks

uid=1000(itsmarttricks) gid=1000(itsmarttricks) groups=1000(itsmarttricks),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),130(sambashare)

Also Read – Managing Users And Groups In Linux – A Complete Guide For Beginners

2. groups Command

groups a command is used to show all the groups a user has a place with like this.

$ groups itsmarttricks

itsmarttricks : itsmarttricks adm cdrom sudo dip plugdev lpadmin sambashare

3. finger Command

finger the command is used to look through the information about a user on Linux. It doesn’t come pre-installed on numerous Linux systems.

To install it on your system, run this command on the terminal.

$ sudo apt install finger	#Debian/Ubuntu 
$ sudo yum install finger	#RHEL/CentOS
$ sudo dnf install finger	#Fedora 22+

It shows a user’s genuine name; home directory; shell; login: name, time; thus considerably more as below.

$ finger itsmarttricks 

Login: itsmarttricks        			Name: itsmarttricks
Directory: /home/itsmarttricks            	Shell: /bin/bash
On since Fri Jan 22 10:39 (IST) on tty8 from :0
   2 hours 1 minute idle
No mail.
No Plan.

4. getent Command

getent is a command-line utility for fetching entries from Name Service Switch (NSS) libraries from a particular system database.

To get a user’s account details, use the passwd database and the username as follows.

$ getent passwd itsmarttricks

itsmarttricks:x:1000:1000:itsmarttricks,,,:/home/itsmarttricks:/bin/bash

5. grep Command

grep a command is an incredible example looking through apparatus accessible on most if not all Linus systems. You can utilize it to discover data about a particular user from the system accounts file: /etc/passwd as demonstrated beneath.

$ grep -i itsmarttricks /etc/passwd

itsmarttricks:x:1000:1000:itsmarttricks,,,:/home/itsmarttricks:/bin/bash

Also Read – Best Linux Grep Command Examples 

6. lslogins Command

lslogins command shows information about known users in the system, the – u flag just shows user accounts.

$ lslogins -u

UID USER       PROC PWD-LOCK PWD-DENY LAST-LOGIN GECOS
   0 root        144                              root
1000 itsmarttricks 70                     10:39:07 itsmarttricks,,,
1001 aaronkilik    0                              
1002 john          0                              John Doo

7. users Command

users command shows the usernames of all users as of now logged on the system like so.

$ users

itsmarttricks
aaron

Also Read – How To Force Users To Change Their Linux LDAP Password

8. who Command

who command’s identity is used to show users who are logged on the system, including the terminals they are associating with.

$ who -u

itsmarttricks  tty8         2021-01-22 10:39 02:09        2067 (:0)

9. w Command

w command shows all users who are logged on the system and what they are doing.

$ w

12:46:54 up  2:10,  1 user,  load average: 0.34, 0.44, 0.57
USER     TTY      FROM             [email protected]   IDLE   JCPU   PCPU WHAT
itsmarttricks  tty8     :0               10:39    2:10m  4:43   0.46s cinnamon-sessio

10. last or lastb commands

last/lastb commands show a rundown of the last logged-in users on the system.

$ last 
OR
$ last -a   #show hostname on the last column

List of Last Logged Users

itsmarttricks  tty8         Fri Jan 22 10:39    gone - no logout  :0
reboot         system boot  Fri Jan 22 10:36   still running      4.4.0-21-generic
itsmarttricks  tty8         Thu Jan 21 10:44 - down   (06:56)     :0
reboot         system boot  Thu Jan 21 10:42 - 17:40  (06:58)     4.4.0-21-generic
itsmarttricks  tty8         Wed Jan 20 10:19 - down   (06:50)     :0
reboot         system boot  Wed Jan 20 10:17 - 17:10  (06:52)     4.4.0-21-generic
itsmarttricks  pts/14       Tue Jan 19 15:15 - 15:16  (00:00)     tmux(14160).%146
itsmarttricks  pts/13       Tue Jan 19 15:15 - 15:16  (00:00)     tmux(14160).%145
...

To show all the users who were available at a predefined time, use the - p option as follows.

$ last -ap now

itsmarttricks  tty8         Fri Jan 22 10:39    gone - no logout  :0
reboot   system boot  Fri Jan 22 10:36   still running      4.4.0-21-generic

wtmp begins Fri Jan  1 16:23:02 2021

11. lastlog Command

lastlog command is used to discover the details of a new login of all users or of a given user as follows.

$ lastlog  
OR
$ lastlog -u itsmarttricks 	#show lastlog records for specific user itsmarttricks

Records of Recent Logged Users

Username         Port     From             Latest
root                                       **Never logged in**
kernoops                                   **Never logged in**
pulse                                      **Never logged in**
rtkit                                      **Never logged in**
saned                                      **Never logged in**
usbmux                                     **Never logged in**
mdm                                        **Never logged in**
itsmarttricks          pts/1    127.0.0.1        Fri Jan  6 16:50:22 +0530 2021
..

Also Read – Best Linux chage Command With Examples – A Linux Password Expiration Management Tool

That’s all, In this article, we have explained the Simple Ways to Find User Account Info and Login Details in Linux. I hope you enjoy this article. If you like this article, then just share it. If you have any questions about this article, please comment.

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