2.6 Processes, Shells, and Shell Script

Question 1

Under process commands, what does ‘ps’ mean?

Answer 1

Process status

Question 2

What does ps do

Answer 2

Utility for viewing information concerning a selection of running processes on a system

it reads information from the virtual files in /proc file system

Question 3

under process commands, what does kill mean?

Answer 3

a built-in command which is used to terminate processes manually

Question 4

What does csh and bash mean?

Answer 4

C Shell
Bourne Again Shell

Question 5

Unix systems uses these kinds of shell”

Answer 5

C shell or the TC Shell

Question 6

Linux uses what shell?

Answer 6

Bash

Question 7

What are the common use-case for aliases?

Answer 7

Used to substitute a command for another

Commonly used to map longer commands to shorter key sequences.