What is OFS in AWK?
What is the use of string function substr(string,position) in AWK?
What is FILENAME in AWK?
What is the use of string function index(string,search) in AWK?
Write a command to print first and last line using sed command?
What is the use of numeric function srand ?
What is the use of format specifier %o ?
What are Assignment Operators?
What is the use of numeric function atan2?
What are Conditional expressions in AWK?
How to print only blank line of file?
What are AWK patterns?
What is the use of ERRNO?