What command is used to execute a command with root privileges?

The command that is used to execute a command with root privileges is "sudo." It stands for "superuser do," and it allows authorized users to run programs as the superuser or another user, as specified by the security policy configured in the system.

Using "sudo" is particularly important in Unix-like operating systems, where many administrative tasks require elevated permissions that a regular user does not possess. By prefixing a command with "sudo," the user is granted temporary elevated privileges to perform actions that usually require root access, which enhances security by limiting the need to log in as the root user.

Other commands in the list have different functionalities. For instance, "pushd" is used for managing directories in the command line, "cat" is utilized for displaying the contents of files, and "head" is used to view the beginning of a file. These commands do not provide the ability to execute tasks with elevated permissions and are primarily focused on file manipulation and navigation.