Common Linux Commands

Question 1

what does the command shred accomplish:

Answer 1

it destroys files

Question 2

what is the purpose of the tail command?

Answer 2

by default it reads the last 10 lines of text

Question 3

what does the touch command do ?

Answer 3

the easiest way to create new empty files

Question 4

what does the command uname do ?

Answer 4

provides basic information about a system’s software and hardware.

Question 5

what does the command w do?

Answer 5

shows who is logged into the system and what they are doing?

Question 6

name the command that provides brief descriptions of command line programs and other topics related to unix-like operation systems

Answer 6

whatis

Question 7

what does the whoami command do ?

Answer 7

returns the user name of the owner of the current login session.

Question 8

name the command that reads the kernel messages?

Answer 8

dmesg

Question 9

what command shows the sizes of directories and files?

Answer 9

du

Question 10

what command finds files and directories?:

Answer 10

locate

Question 11

what is the root directory?

Answer 11

it is the directory at the very top of the hierarchy of directories