What is the use of string function sub(regex,replacement,string)?
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What is the use of string function index(string,search) in AWK?
Write a command to print first and last line using sed command?
What is the use of ARGIND?
What are Dynamic Variables?
Write a command to find the total number of lines in a file without using nr?
How to display even number of records into one file and odd number of records into another file?
What is the use of RSTART, RLENGTH and match ?
Which shell to use with AWK?
What is NF in AWK?
What is the use of string function toupper(string)?
Write a command to print the squares of numbers from 1 to 10 using awk command?
What is the use of format specifier %s ?