Linux_1

What is the root directory in Linux?

• /var

• /

• /root

• /home

Answer explanation

The root directory in Linux is denoted by '/'. It is the top-level directory in the file system hierarchy where all other directories and files are located.

How do you list all files in a directory in Linux?

• ls -l

• ls -a

• ls -r

• ls -c

Answer explanation

To list all files in a directory in Linux, you use the command 'ls -a' which displays all files including hidden ones starting with a dot.

What command is used to create a new user in Linux?

• newuser

• usercreate

• adduser

• useradd

Answer explanation

The correct command to create a new user in Linux is 'useradd'.

Explain the purpose of the 'chmod' command in Linux.

• The 'chmod' command in Linux is used to change file permissions.

• The 'chmod' command in Linux is used to check disk space

• The 'chmod' command in Linux is used to install software packages

• The 'chmod' command in Linux is used to create new files

Answer explanation

The 'chmod' command in Linux is used to change file permissions.

What is the default shell in most Linux distributions?

• Ksh

• Csh

• Bash

• Zsh

Answer explanation

In most Linux distributions, the default shell is Bash.

How do you check the IP address of a Linux system?

• Use the 'ifconfig' command in the terminal.

• Look for the IP address on the system's desktop wallpaper.

• Use the 'ping' command in the terminal.

• Check the IP address in the web browser settings.

Answer explanation

Use the 'ifconfig' command in the terminal to check the IP address of a Linux system.

How do you change file permissions in Linux?

• Modify file permissions directly in the file properties window.

• Use the 'change' command in Linux.

• Execute 'chmod' in Windows instead of Linux.

• Use the 'chmod' command in Linux.

Answer explanation

To change file permissions in Linux, you should use the 'chmod' command. This command allows you to modify the permissions of a file or directory by specifying the desired permissions using symbolic or octal notation.

What is the 'ls' command used for in Linux?

• Change file permissions

• Create a new directory

• List directory contents

• Locate a file

Answer explanation

The 'ls' command in Linux is used to list directory contents, showing the files and folders within a specified directory.

How do you add a user to a group in Linux?

• chmod

• sudo adduser

• useradd -G

• sudo usermod -aG

Answer explanation

To add a user to a group in Linux, you should use the command 'sudo usermod -aG '. This command adds the user to the specified group.

Explain the concept of 'sudo' in Linux.

• 'sudo' is a type of pasta in Linux

• 'sudo' is a musical instrument in Linux

• 'sudo' is a new programming language in Linux

• Explanation of 'sudo' in Linux.

Answer explanation

'sudo' in Linux is a command that allows users to run programs with the security privileges of another user, typically the superuser or root.