Display your own Text on ubuntu terminal

$ figlet -f slant "Big Data" -c | lolcat && figlet -f digital -c "Drive into DataScience" | lolcat 

How to display the above text on terminal:

Useful commands:

How to check the number of directories created by the user on terminal:

csedept@cse:~$ ls /home
csedept  hdoop

csedept@cse:~$ ls -l /home/hdoop/

total 16

-rw-r--r--  1 hdoop hdoop 8980 Dec 18 16:26 examples.desktop

drwxr-xr-x 14 hdoop hdoop 4096 Dec 18 16:55 hadoop

How to enter into the root terminal:

csedept@cse:~$ sudo -s

root@cse:/home/csedept# 

How to use id command on the  terminal:

csedept@cse:~$ id

uid=1000(csedept) gid=1000(csedept) groups=1000(csedept),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),116(lpadmin),126(sambashare)

csedept@cse:~$ id -u

1000

csedept@cse:~$ id -n -u

csedept

csedept@cse:~$ sudo adduser duck

[sudo] password for csedept: 

Adding user `duck' ...

Adding new group `duck' (1001) ...

Adding new user `duck' (1001) with group `duck' ...

Creating home directory `/home/duck' ...

Copying files from `/etc/skel' ...

New password: 

Retype new password: 

passwd: password updated successfully

Changing the user information for duck

Enter the new value, or press ENTER for the default

Full Name []:duck 

Room Number []: 

Work Phone []: 

Home Phone []: 

Other []: 

Is the information correct? [Y/n] y

csedept@cse:~$ ls /home/

csedept  duck  hdoop

How to switch the user using su command:

csedept@cse:~$ su - duck

Password: 

duck@cse:~$ logout

csedept@cse:~$