How basic file permissions work: 2-Minute Linux Tips

The video tutorial explains file permissions, detailing how they determine user access to files. It covers the representation of permissions in binary and octal formats, and how these are assigned to file owners, groups, and others. The tutorial also demonstrates creating a file and checking its permissions, and explains the UMASK command, which influences default permission settings.

What do file permissions determine?

• The size of the file

• The type of file

• The location of the file

• The actions users can perform on the file

Which of the following is NOT a permission bit?

• Read

• Write

• Delete

• Execute

How are file permissions represented in binary?

• As a series of numbers

• As a series of symbols

• As a series of letters

• As a series of 0s and 1s

What does a UMASK value of 002 imply for new files?

• Permissions will be 775

• Permissions will be 777

• Permissions will be 666

• Permissions will be 664

Why is execute permission not granted by default?

• It is automatically granted

• It is only for system files

• It is considered a security risk

• It is not needed for most files