The agency that sits between the user and the UNIX system is called the

Which of the following commands is used to update access and modification times of a file?

Which command is used to count just the number of characters in a file?

Which of the following commands is used to list contents of directories?

Which command is used to display a file contents in octal form?

Which command will be used with vi editor to insert text to left of cursor?

In vi editor, forward search is performed using the command.

Which of the following command addresses all users who are currently hooked on?