Unix
The command to count the number of files in the current directory by using pipes, is

ls | wc
ls | ws -c
ls -l | wc -l
ls | wc -w

ANSWER DOWNLOAD EXAMIANS APP

Unix
The special shell variable $* is used

to process number of the current shell
to name the command being executed
to exit status of ast command executed.
None of these
to list the positional parameters

ANSWER DOWNLOAD EXAMIANS APP