Which of the following command addresses all users who are currently hooked on? mail mesg wall write TRUE ANSWER : ? YOUR ANSWER : ?
Which option will be used with disk free command to include the total amount of disk space in the file system? None of these #NAME? #NAME? #NAME? -4 TRUE ANSWER : ? YOUR ANSWER : ?
The command to count the number of files in the current directory by using pipes, is ls -l | wc -l ls | wc ls | ws -c ls | wc -w TRUE ANSWER : ? YOUR ANSWER : ?
Which option is used with the chmod command recursively to all files and sub-directories in a directory? -R None of these -1 #NAME? TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following special shell variables is used to process number of the last background job? $# $! $0 $* TRUE ANSWER : ? YOUR ANSWER : ?
Which symbol will be used with grep command to match the pattern pat at the end of a line? None of these ^pat pat^ $pat pat$ TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following commands is used to assign executable permission to the owner of the file named "note"? chmod ugo+x note chmod u+x note chmod g+x note chmod u+w note TRUE ANSWER : ? YOUR ANSWER : ?