Linux exercise 2 - CLI¶

1. List all available shells on your Linux distribution.
2. Find general guidelines using man command for user password (Hint: passwd).
3. How can you change your user from regular to root user and back to regular?
4. Find out what is the description of the following Linux commands:
   • echo
   • free
   • history
   • w
5. Give an example of all of the above commands and command outputs.