How To Check File Permissions In Linux?

To check the permissions of files and folders in Linux, you can use the “ls” command. The “ls” command can be used to list the contents of a directory, as well as its associated file permissions.

The syntax for the command is as follows:

ls -l

This command will list the contents of the current directory along with the associated file permissions. The output will look something like this:

-rw-r–r– 1 user group 0 Jan 1 12:00 filename

The first character indicates the type of file (d for directory, – for regular file, etc.), while the next nine characters indicate the file permissions. The first three indicate the permissions for the user, the next three indicate the permissions for the group, and the last three indicate the permissions for everyone else.

The number indicates the number of links associated with the file, and the last two columns indicate the user and group associated with the file.

To change the permissions of a file, you can use the “chmod” command. The syntax for this command is as follows:

chmod [mode] [filename]

For example, to give the user full permissions to a file, you can use the command:

chmod u+rwx filename

This will give the user read, write, and execute permissions for that file.