What is the use of string function substr(string,position) in AWK?
What is the use of string function substr(string,position,max) in AWK?
What is the use of string function sub(regex,replacement)?
What is the use of string function sub(regex,replacement,string)?
What is the use of string functiong sub(regex,replacement)?
What is the use of string functiong sub(regex,replacement,string)?
What is the use of string function match(string,regex)?
What is the use of string function tolower(string)?
What is the use of string function toupper(string)?
What is the use of string function asort(string,[d])?
What is the use of string function asorti(string,[d])?
What is the use of string function gensub(r,s,h [,t])?
What are System functions?
What is the use of systime function?
What is the use of Strftime function?