Question

-a option is used with ls command for what purpose?

(a) for showing hidden files

(b) for showing executables

(c) for showing directories

(d) for multi columnar output

Answer 1

Right option is (a) for showing hidden files

The best explanation: -a option when used with ls command displays all the files including hidden files. Files beginning with a ( . ) are listed using -a option. There are certain files (filenames beginning with a  . ) These files are not listed without -a option.