Options for Commands

Question 1

How do you list all available pages in the man documentation for a particular command (what option can you use)

Answer 1

man -f {command name (install, ls etc)}

Question 2

This will give us any command that has to do with list

Answer 2

man -k list

Question 3

Create a parent directory along with a current directory

Answer 3

mkdir
-p option will create parent directories as needed

Question 4

How to remove files while also skipping prompt

Answer 4

f option removes the prompt when deleting files or directories

Question 5

Option to update a group ID

Answer 5

groupadd -g 1214

Question 6

How do you create a new user without a default home directory but instead assign it to a new group you create?

Answer 6

useradd -M -g ops barry (-M will not create a home directory for the user) (-g will create a group)

Question 7

Update a user ID

Answer 7

usermod -u 1244 rachel

Question 8

Change group name

Answer 8

groupmod -n dev1 dev. dev has been changed to dev1

Question 9

Chane home directory for a user

Answer 9

usermod -d /home/flash barry

Question 10

What command outputs the first/last part of files and specifies the number of lines to output?

Answer 10

head -n or tail -n (tail -f is used to append data as it grows)

Question 11

What command prints lines matching a pattern and ignores case

Answer 11

grep -i

Question 12

What command sorts lines of text or numbers and what option can be used to sort numerically?

Answer 12

sort -n

Question 13

what command terminates a process and what is the default signal it sends?

Answer 13

Kill
-sends SIGTERM signal 15
-9 SIGKILL terminates processes without allowing cleanup similar to killing computer without allowing it to gracefully shut down