Useful terminal commands

Kill a process running on localhost

First, find the process using

lsof -i :3000

Then, kill the process via the PID

kill <PID> 

Create a new user with sudo ubuntu

Create the new user. Need to use sudo if not signed in as root.

adduser <newuser>

Give sudo priveleges

usermod -aG sudo <newuser>

How to insert a unicode character into the terminal

To insert a unicode character in the terminal, press Ctrl + Shift + U then enter the code for the character you wish to enter. For example, the em-dash is U+2024. Hit enter once the number is typed out to see the character appear.