Question

Which of the following command is used to set the file permission as executable?
(a) grep
(b) chmod
(c) Is
(d) x

Answer 1

Chmod command is used to set the file permission as executable and   first  and  probably  easiest way   is  relative  method  and it allow your specify access  classes and also  various type with single letter  abbreviation .  

Absolution  the  way  to use  the chmod  commands is  absolute  form