Linux Commands

Question 1

pwd

Answer 1

shows current directory location

Question 2

ls

Answer 2

lists the contents of current directory

Question 3

cd

Answer 3

navigates to and from directories
cd /var/log

Question 4

mv

Answer 4

move or rename files

Question 5

cp

Answer 5

copies files and directories

Question 6

rm

Answer 6

does not remove directories by default (use -r option\ or -d if directory is empty)

Question 7

find

Answer 7

used to find files

Question 8

cat

Answer 8

The cat command allows the creation of single or multiple files, view file contents, concatenate files, and redirect output in the terminal to a file

Question 9

grep

Answer 9

used to search for one or more patterns

Question 10

nano & vi

Answer 10

File editors

Question 11

sudo

Answer 11

elevate privileges to superuser

Question 12

su

Answer 12

switch user

Question 13

chmod

Answer 13

change permissions of files

Question 14

chown

Answer 14

change ownership over files

Question 15

ifconfig

Answer 15

network interface configuration

Question 16

ip

Answer 16

currently preferred IP configuration utility

Question 17

dig

Answer 17

testing DNS

Question 18

ps, top

Answer 18

ps shows all processes

Top shows CPU, RAM and other utility utilizations

Question 19

kill

Answer 19

terminates designated program

Question 20

man

Answer 20

equivalent to /?