What is NF in AWK?
What is the use of string function substr(string,position) in AWK?
What is the use of numeric function exp ?
What is the use of SUBSEP?
What is the use of format specifier %x ?
What is the use of FNR?
what is information technology
Write a command to print first and last line using sed command?
What is the Basic Structure of AWK program?
What is the use of string function toupper(string)?
What is the use of systime function?
How to print only blank line of file?
What is the use of sequence v ?