Linux

Question 1

Find a file by name and type

Answer 1

find -name bob -type f (or d)

Question 2

Find any files modified in last 20 min

Answer 2

find -mmin 20

Question 3

Find: find any files accessed in last 3 days

Answer 3

find -atime 3

Question 4

List the user groups on the system

Answer 4

cat /etc/group

Question 5

Add user jaalger to group tomcat

Answer 5

usermod -aG tomcat jaalger

Question 6

How to edit the sudo file

Answer 6

visudo (As root user)

Question 7

How do you ssh into a server through a hop server, and run a command.
Assume hop is 1.2.3.4
Assume target is 10.20.30.40
Assume command is sudo ./logs
Include the sshAgent to bypass passwords

Answer 7

ssh -At 1.2.3.4 ssh -At 10.20.30.40 sudo ./logs

Question 8

Add user to a linux system with a password

Answer 8

useradd username

passwd username