What is the use of string function toupper(string)?
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What is the use of numeric function int ?
What is RS in AWK?
What are Unary arithmetic operators?
Write a command to print the fields in a text file in reverse order?
What are AWK patterns?
What is OFS in AWK?
What is the use of string functiong sub(regex,replacement,string)?
What is the use of FIELDWIDTHS?
What is the use of string function length(string) in AWK?
Write a command remove all empty lines?
What are Regular Expressions in AWK?
How to print only blank line of file?