What is NR in AWK?
What is the use of numeric function sin ?
What is the use of string function match(string,regex)?
What is the use of sequence f?
What is the Basic Structure of AWK program?
What is the use of sequence a?
What is the use of numeric function int ?
What is the use of sequence <Any other character> ?
What is ORS in AWK?
What is the use of sequence ddd ?
What is the use of string functiong sub(regex,replacement,string)?
Write a command to print first and last line using sed command?
What is the use of ARGIND?