Linux File Permission

What are the three types of permissions in Linux file permissions?

• read

• write

• read, write, execute

• delete

Explain the meaning of 'rwx' in Linux file permissions.

• Read, Write, Execute

• Read, Write, Move

• Read, Write, Copy

• Read, Write, Delete

How can you change file permissions using the 'chmod' command?

• chmod rwx example.txt

• chmod u+rwx example.txt

• chmod u-w example.txt

• chmod a+rw example.txt

What is the numeric representation of read, write, and execute permissions in Linux?

• {'read': 3, 'write': 2, 'execute': 1}

• {'read': 2, 'write': 4, 'execute': 1}

• {'read': 4, 'write': 2, 'execute': 1}

• {'read': 1, 'write': 2, 'execute': 4}

How can you view the file permissions of a file in Linux?

• show -l

• cat -l

• ls -l

• dir -l

Explain the output of 'ls -l' command in Linux.

• The output of 'ls -l' command in Linux displays only file names.

• The output of 'ls -l' command in Linux displays detailed information about files and directories in long format.

• The output of 'ls -l' command in Linux includes hidden files.

• The output of 'ls -l' command in Linux shows the file size in bytes.

What is the significance of the 'chmod' command in Linux?

• It is essential for installing software packages in Linux.

• It is primarily used for checking system updates in Linux.

• It is used for creating new files in Linux.

• It is significant for managing file permissions in Linux.

How can you give read and write permissions to the owner of a file in Linux?

• chmod g+rw filename

• chmod u+rw filename

• chmod o+rw filename

• chmod a+rw filename

What is the default file permission for a newly created file in Linux?

• 555

• 777

• 444

• 666

Explain the concept of umask in Linux.

• Umask is used to increase file permissions in Linux

• Umask is a command to delete files in Linux

• The concept of umask in Linux is used to set default permissions for newly created files and directories by subtracting the specified permissions from the maximum permissions.

• Umask is a tool to compress files in Linux