Unix The command to count the number of files in the current directory by using pipes, is ls | wc -w ls | ws -c ls -l | wc -l ls | wc ls | wc -w ls | ws -c ls -l | wc -l ls | wc ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following commands is used to have a two-way communication with any person who is currently logged in? grep mail None of these mesg write grep mail None of these mesg write ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following special shell variables is used to process number of the current shell? $$ $* None of these $! $$ $* None of these $! ANSWER DOWNLOAD EXAMIANS APP
Unix The File that contains a set of instructions which are performed when a user logs in, is autoexec.bat .exrc .autoexec .profile None of these autoexec.bat .exrc .autoexec .profile None of these ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following commands is used to get directory one level up? chdir cd/ None of these cd cd .. chdir cd/ None of these cd cd .. ANSWER DOWNLOAD EXAMIANS APP
Unix Which command will be used with vi editor to insert text to left of cursor? s i S a s i S a ANSWER DOWNLOAD EXAMIANS APP
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