Which of the following commands can be used to communicate directly with other users by sending messages?

Which screen manipulation command sets the screen to reverse video?

Consider the following command cat re* Which of the following files will not be displayed by this command ?

Suppose you have a file named trans and you want to display fields two to four. Which of the following commands will you use ?

Which of the following files is configured for login name, login directory and login shell variables?

Which option used along with the find command allows one to perform operations on the files that are located by the find command ?

Which command gives information about space being used by files and directories ?

The main objective of a time-sharing operating System like UNIX is to :

Which command will you use to count the number of words in a file?

Which keystroke combination sends or signals an interrupt request to a process ?

The file oldies-goldies has the details of the sale of books.The records are sorted on the names of the authors and are as follows Alexandre Dumas Alexandre Dumas Alexandre Dumas Gerald Durrell Giovanni Guareschi Giovanni Guareschi James Herriot Louisa May Alcott Louisa May Alcott Louisa May Alcott Based on the above information, what will be the output of the command uniq -u oldies-goldies ?