Commands

Question 1

Pwd

Answer 1

Print working directory

Question 2

Ls

Ls -la

Answer 2

Long listing

Long format ,show hiding files

Question 3

Man

Answer 3

Manual

Shows different flags or arguments to use

Question 4

Cd
Cd -
Cd ..
Cd ../../

Answer 4

Change Directory
Alone cd takes to home directory
Cd - goes back one time
Cd .. goes up a directory
Cd ../../ goes up multi directory

Question 5

Su
Sudo
Sudo su

Answer 5

Switch user
Super user do (use to execute command with root privileges)
Gives root privileges

Question 6

Useradd

Passwd

Answer 6

Adds user

Adds password

Question 7

Echo
Echo “neo” > linux.txt
Echo “neo”&raquo_space; linux.txt

Answer 7

Echos use to display line of text or string
Adds neo to linux.txt
Adds neo to the end of linux.txt

Question 8

Cp

Mv

Answer 8

Copy

Cut

Question 9

Cat

Answer 9

Reads files (prints it out to the terminal)

Question 10

Touch
Mkdir
Rm
Rmdir
Rm -r

Answer 10

Creates empty file
Make directory
Removes files
Removes directories
Removes files inside and parent directories

Question 11

Less

Answer 11

Another command to view files

Question 12

Head -n # [file path]

Tail -n # [file path]

Answer 12

Head shows number of the lines from top

Tail shows number of the line from bottom

Question 13

Grep

Answer 13

Finds everything you find :)

Question 14

Nano

Vim

Answer 14

Text editors

Question 15

Chmod

Answer 15

Changing permission on a file for example making a file executable.

Question 16

Zip
Zip -er [zip name] [folder or file]
Unzip

Answer 16

Zips the files
Creating an encrypted zip file
Unzips