What is NF in AWK?
What are Regular Expressions in AWK?
How to print only blank line of file?
What is the use of string function toupper(string)?
What are Associative Arrays?
What is the use of OFMT?
What is the use of numeric function cos ?
What is the use of format specifier %% ?
How add a first record and last record to the current file in linux?
How to generate random numbers in AWK?
What are System functions?
What is FS in AWK?
What is the use of numeric function srand ?