Linux Commands

Question 1

Basic Linux commands - change ownership or change how well something is locked down

Answer 1

chown - for ownership/group

chmod - for file permissions

Question 2

Basic Linux commands - check mounted drives

Answer 2

mount

Question 3

Basic Linux commands - how do you view the amount of ram?

Answer 3

free

Question 4

Basic Linux commands - disk usage

Answer 4

df -h

du

Question 5

Basic Linux commands - cpu intensive processes running

Answer 5

top -c

htop

Question 6

Basic Linux commands - how would you edit a file?

Answer 6

VI or Nano

Question 7

Basic Linux commands - How would you show me all the files in a directory?

Answer 7

ls

Question 8

Basic Linux commands - need to create a new directory

Answer 8

mkdir

Question 9

Basic Linux commands - How would you write out the contents of an entire file?

Answer 9

cat

Question 10

Basic Linux commands - how would you securely copy a file from one place to another

Answer 10

scp

Question 11

Basic Linux commands - how would you install an application on linux?

Answer 11

use YUM

Question 12

Basic Linux commands - how would you use check to see if another server is on the network without connecting to it

Answer 12

ping

Question 13

Basic Linux commands - how do you check the network configuration settings on a linux server?

Answer 13

ifconfig

Question 14

Basic Linux commands - how do you check the ports being used currently or by a process?

Answer 14

netstat -anp

Question 15

Basic Linux commands - how do you check processes on a server

Answer 15

ps -ef | grep (if needing a specific item)

Question 16

Basic Linux commands - how do you move a files?

Answer 16

mv

Question 17

Basic Linux commands - how do you delete a directory?

Answer 17

rmdir

Question 18

Basic Linux commands - Allows regular users to run programs with the security privileges of the superuser or root

Answer 18

sudo

Question 19

Basic Linux commands - change directory

Answer 19

cd

Question 20

Basic Linux commands - how do you check the working directory you are in

Answer 20

pwd

Question 21

Basic Linux commands - how do you download files from the internet?

Answer 21

wget

Question 22

Basic Linux commands - how do you return the unix name, os, kernel, etc?

Answer 22

uname command

Question 23

Basic Linux commands - how do you see the time taken between IP address hops?

Answer 23

traceroute