Assign a value to a variable and show it on output
$ someVar = “hello world!”
$ echo $someVar
Assign a command into a variable and run it
$ someVar = “ps -a”
$ $someVar (runs the command contained in the string)
Find command’s actual path
which ls –> shows /usr/bin/ls
On WSL
ls -l –> can give access denied if you’re in windows/system32 folder
cd /home -> goto ubuntu default home folder.
dir -l –> works same as ls -l