What is the use of numeric function exp ?
What is the use of string function gensub(r,s,h [,t])?
What is the use of string function strtonum(string)?
What is the use of format specifier %x ?
How to print only blank line of file?
What is the use of sequence a?
What is the use of string function toupper(string)?
How add a first record and last record to the current file in linux?
What is the use of sequence <Any other character> ?
Write a command to print all line except first line?
What are System functions?
What is the use of ERRNO?
What is the Basic Structure of AWK program?