This is a quick start guide to linux OS where we will understand the file structure and essential commands(Account / File system related including commands to run a program) that every linux user must know. The following commands are covered in this video : 1) su 2) whoami 3) passwd 4) id 5) cd 6) pwd 7) locate 8) ls with -l and -a 9) mount 10) mkdir 11) rm 12) cp 13 gedit 14) cat 15) less 16) | (piping) 17) $PATH 18) ./ 19) ps 20) bg 21) jobs 22) fg