Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories ?
(A) rm *
(B) rm -r *
(C) rm all
(D) rm *.*
Which of the following commands is used to have a two-way communication with any person who is currently logged in ?
(A) mail
(B) mesg
(C) write
(D) grep
Which operator will be used with chmod command to assign absolute permission ?
(A) +
(B) –
(C) =
(D) %
Which command is used to display the device name of the terminal you are using ?
(A) who
(B) ls
(C) tty
(D) stty
You can append to a file instead of overwriting by using the_______________?
(A) > symbols
(B) >> symbols
(C) < symbols
(D) << symbols
Which of the following commands is used to view your file 24 lines at a time ?
(A) pg
(B) cat
(C) lp
(D) /p
The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has________________?
(A) executable permission only
(B) write and executable permissions
(C) both read and executable permissions.
(D) both read and write permissions
Which program is used to automatically install Red Mat Linux on identical hardware ?
(A) bzimage.img
(B) tar
(C) ghost
(D) mkkickstart