Unix Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3? chmod 777 emp* chmod u+r ??? emp chmod u+x emp[1-3] chmod 222 emp? chmod 777 emp* chmod u+r ??? emp chmod u+x emp[1-3] chmod 222 emp? ANSWER DOWNLOAD EXAMIANS APP
Unix Which of are following internal commands is used in mail to forward mail to user in user-list? d user-list None of these m user-list r user-list e user-list d user-list None of these m user-list r user-list e user-list ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to display and create files? cat lyrix ed vi cat lyrix ed vi ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories? rm *.* rm * None of these rm all rm -r * rm *.* rm * None of these rm all rm -r * ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following commands is used to get directory one level up? None of these cd/ cd cd .. chdir None of these cd/ cd cd .. chdir ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following special shell variables is used to process number of the last background job? $0 $* $# $! $0 $* $# $! ANSWER DOWNLOAD EXAMIANS APP
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