Lab 003 - File Permissions

Fri, 05 Jun 2026 00:00:00 +0000

Goal

Understand chmod.

Commands

chmod 755 file.sh

Observations

…

Linux Practice 001

Thu, 04 Jun 2026 00:00:00 +0000



aadarkdk@pop-os:~$ ssh aadarsha@192.168.254.67
aadarsha@192.168.254.67's password: 
Last login: Thu Jun 4 06:34:06 2026
[aadarsha@labserver ~]$ whoami
aadarsha
[aadarsha@labserver ~]$ # Switching User's account
[aadarsha@labserver ~]$ # su - <username>
[aadarsha@labserver ~]$ su - root
Password: 
Last login: Tue Jun 2 16:55:19 +0545 2026 on pts/1
[root@labserver ~]# whoami
root
[root@labserver ~]# exit
logout
[aadarsha@labserver ~]$ whoami
aadarsha
[aadarsha@labserver ~]$ sudo -i
[sudo] password for aadarsha: 
Sorry, try again.
[sudo] password for aadarsha: 
Sorry, try again.
[sudo] password for aadarsha: 
sudo: 3 incorrect password attempts
[aadarsha@labserver ~]$ sudo -i
[sudo] password for aadarsha: 
Sorry, try again.
[sudo] password for aadarsha: 
[root@labserver ~]# whoami
root
[root@labserver ~]# exit
logout
[aadarsha@labserver ~]$ sudo su
[root@labserver aadarsha]# whoami
root
[root@labserver aadarsha]# exit
exit
[aadarsha@labserver ~]$ sudo su
[root@labserver aadarsha]# cd
[root@labserver ~]# ls
anaconda-ks.cfg
[root@labserver ~]# useradd myuser1
[root@labserver ~]# passwd myuser1
New password: 
Retype new password: 
passwd: password updated successfully
[root@labserver ~]# su - myuser1
[myuser1@labserver ~]$ exit
logout
[root@labserver ~]# exit
exit
[aadarsha@labserver ~]$ exit
logout
Connection to 192.168.254.67 closed.
aadarkdk@pop-os:~$ ssh myuser1@192.168.254.67
myuser1@192.168.254.67's password: 
Last login: Thu Jun 4 08:04:35 2026 from 192.168.254.69
[myuser1@labserver ~]$ su - aadarsha
Password: 
Last login: Thu Jun 4 06:35:22 +0545 2026 from 192.168.254.69 on pts/0
[aadarsha@labserver ~]$ su - root
Password: 
Last login: Thu Jun 4 07:55:36 +0545 2026 on pts/1
[root@labserver ~]# exit
logout
[aadarsha@labserver ~]$ pwd
/home/aadarsha
[aadarsha@labserver ~]$ exit
logout
[myuser1@labserver ~]$ pwd
/home/myuser1
[myuser1@labserver ~]$ su - aadarsha
Password: 
Last login: Thu Jun 4 08:05:42 +0545 2026 on pts/0
[aadarsha@labserver ~]$ exit
logout
[myuser1@labserver ~]$ whoami
myuser1
[myuser1@labserver ~]$ passwd myuser1
Current password: 
New password: 
Retype new password: 
passwd: password updated successfully
[myuser1@labserver ~]$ passwd
Current password: 
New password: 
Retype new password: 
passwd: password updated successfully
[myuser1@labserver ~]$ su - aadarsha
Password: 
Last login: Thu Jun 4 08:06:15 +0545 2026 on pts/0
[aadarsha@labserver ~]$ date
Thu Jun 4 08:09:21 AM +0545 2026
[aadarsha@labserver ~]$ su - root
Password: 
Last login: Thu Jun 4 08:05:52 +0545 2026 on pts/0
[root@labserver ~]# date --set=2026-06-01
Mon Jun 1 12:00:00 AM +0545 2026
[root@labserver ~]# date
Mon Jun 1 12:00:03 AM +0545 2026
[root@labserver ~]# date --set=2026-06-04
Thu Jun 4 12:00:00 AM +0545 2026
[root@labserver ~]# date --set=08:13:00
Thu Jun 4 08:13:00 AM +0545 2026
[root@labserver ~]# exit
logout
[aadarsha@labserver ~]$ cal
 June 2026 
Su Mo Tu We Th Fr Sa
 1 2 3 4 5 6
 7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 
 
[aadarsha@labserver ~]$ cal 2026
 2026 

 January February March 
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
 1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 6 7
 4 5 6 7 8 9 10 8 9 10 11 12 13 14 8 9 10 11 12 13 14
11 12 13 14 15 16 17 15 16 17 18 19 20 21 15 16 17 18 19 20 21
18 19 20 21 22 23 24 22 23 24 25 26 27 28 22 23 24 25 26 27 28
25 26 27 28 29 30 31 29 30 31 
 
 April May June 
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
 1 2 3 4 1 2 1 2 3 4 5 6
 5 6 7 8 9 10 11 3 4 5 6 7 8 9 7 8 9 10 11 12 13
12 13 14 15 16 17 18 10 11 12 13 14 15 16 14 15 16 17 18 19 20
19 20 21 22 23 24 25 17 18 19 20 21 22 23 21 22 23 24 25 26 27
26 27 28 29 30 24 25 26 27 28 29 30 28 29 30 
 31 
 July August September 
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
 1 2 3 4 1 1 2 3 4 5
 5 6 7 8 9 10 11 2 3 4 5 6 7 8 6 7 8 9 10 11 12
12 13 14 15 16 17 18 9 10 11 12 13 14 15 13 14 15 16 17 18 19
19 20 21 22 23 24 25 16 17 18 19 20 21 22 20 21 22 23 24 25 26
26 27 28 29 30 31 23 24 25 26 27 28 29 27 28 29 30 
 30 31 
 October November December 
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
 1 2 3 1 2 3 4 5 6 7 1 2 3 4 5
 4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12
11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19
18 19 20 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26
25 26 27 28 29 30 31 29 30 27 28 29 30 31 
 
[aadarsha@labserver ~]$ cd
[aadarsha@labserver ~]$ pwd
/home/aadarsha
[aadarsha@labserver ~]$ su - myuser1
Password: 
Last login: Thu Jun 4 08:05:22 +0545 2026 from 192.168.254.69 on pts/0
[myuser1@labserver ~]$ pwd
/home/myuser1
[myuser1@labserver ~]$ cd /
[myuser1@labserver /]$ pwd
/
[myuser1@labserver /]$ cd
[myuser1@labserver ~]$ exit
logout
[aadarsha@labserver ~]$ # Creating a directory 
[aadarsha@labserver ~]$ mkdir mydir1
[aadarsha@labserver ~]$ # Creating a File
[aadarsha@labserver ~]$ # using 'cat' command
[aadarsha@labserver ~]$ cat > file1
This is my first file... 
[aadarsha@labserver ~]$ # CTRL + D --> Save and exit 
[aadarsha@labserver ~]$ ls
file1 mydir1
[aadarsha@labserver ~]$ cat file1
This is my first file...
[aadarsha@labserver ~]$ # using 'vi' editor
[aadarsha@labserver ~]$ vi file2
[aadarsha@labserver ~]$ hostname
labserver
[aadarsha@labserver ~]$ pwd
/home/aadarsha
[aadarsha@labserver ~]$ # home directory of the current user => /home/<user-name>
[aadarsha@labserver ~]$ # Viewing the contents of the file
[aadarsha@labserver ~]$ cat file1
This is my first file...
[aadarsha@labserver ~]$ cat file2 
This is my second file...
[aadarsha@labserver ~]$ # Modifying the content of the file
[aadarsha@labserver ~]$ vi file2
[aadarsha@labserver ~]$ cat file2
This is my second file...

This is added later
[aadarsha@labserver ~]$ vi file2
[aadarsha@labserver ~]$ cat file2
This is my second file...

This is added later

[aadarsha@labserver ~]$ ls
file1 file2 mydir1
[aadarsha@labserver ~]$ cd mydir1/
[aadarsha@labserver mydir1]$ pwd
/home/aadarsha/mydir1
[aadarsha@labserver mydir1]$ cd ~
[aadarsha@labserver ~]$ cd /
[aadarsha@labserver /]$ cd ~
[aadarsha@labserver ~]$ pwd
/home/aadarsha
[aadarsha@labserver ~]$

Linux Practice 002

Thu, 04 Jun 2026 00:00:00 +0000



aadarkdk@pop-os:~$ ssh aadarsha@192.168.254.67
aadarsha@192.168.254.67's password: 
Last login: Thu Jun 4 06:34:06 2026
[aadarsha@labserver ~]$ whoami
aadarsha
[aadarsha@labserver ~]$ # Switching User's account
[aadarsha@labserver ~]$ # su - <username>
[aadarsha@labserver ~]$ su - root
Password: 
Last login: Tue Jun 2 16:55:19 +0545 2026 on pts/1
[root@labserver ~]# whoami
root
[root@labserver ~]# exit

Aadarsha Khadka

Lab 003 - File Permissions

Goal

Commands

Observations

Linux Practice 001

Linux Practice 002