What is NR in AWK?
How add a first record and last record to the current file in linux?
What is the use of numeric function log ?
What is the use of string function match(string,regex)?
What are Associative Arrays?
What is the use of string function toupper(string)?
Write a command remove all empty lines?
What is the use of sequence ddd ?
What is the use of FIELDWIDTHS?
How to execute an AWK script?
What is the use of CONVFMT?
What is the use of sequence xdd ?
What is the use of PRINTF?