What are Associative Arrays?
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What are Regular Expressions in AWK?
What is OFS in AWK?
What is the use of string function index(string,search) in AWK?
What is the use of string function match(string,regex)?
What is the use of string function sub(regex,replacement,string)?
What is the use of string function toupper(string)?
What are the Autoincrement and Autodecrement Operators?
What is the use of string function gensub(r,s,h [,t])?
What is the use of numeric function int ?
What is the use of format specifier %e ?
What is the use of numeric function sqrt ?
How to print only blank line of file?