Question

Task 1: Using the adduser Command

Execute the following commands in the root command-line environment:

# ls /home

# adduser newuser1

# ls /home

Contrast the contents of home before and after the adduser command. ?

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# cd /home/newuser1

# ls -al

# tail -n 5 /etc/passwd

What is the absolute path of newuser1's home directory?

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What is the default shell for newuser1?

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# tail -n 5 /etc/shadow

Contrast the newuser1 record with your usual account record.

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Answer 1

Execute the following commands in the root command-line environment:

Answer)

ls /home ---->After the adduser newuser1 I can see the a directory with the newuser1 same as the username is created under /home directory.

Explanation:

When we create a new user as newuser1 its home directory is by default created in the /home directory same as the user name. So before ls /home the newuser1 directory is not created but after adduser newuser1 it is created.

What is the absolute path of newuser1's home directory?

Answer)

/home/newuser1

What is the default shell for newuser1?

Answer)

bash

Explanation:

tail -n 5 displays the last 5 lines from the /etc/passwd file. The info /etc/passwd file stores are

username:passwd info:userid:groupid:gecos:absolute home directory:path and name of default shell file

newuser1:x:506:507::/home/newuser1:/bin/bash

Screenshot

tail -n 5 /etc/shadow

Contrast the newuser1 record with your usual account record.

Answer)

/etc/shadow file actually stores the password information in encrypted manner. In the screen shot we can see the encrypted password of student but we cannot see that for user newuser1. It also stored the password expiry information.