function::substr - Returns a substring

str
           the string to take a substring from

       start
           starting position of the extracted string (first character is 0)

       length
           length of string to return

       Returns the substring of the given string at the given start position with the given length (or smaller
       if the length of the original string is less than start + length, or length is bigger than MAXSTRINGLEN).

       function::substr - Returns a substring

tapset::string(3stap)

SystemTap Tapset Reference                         April 2024                            FUNCTION::SUBSTR(3stap)

           substr:string(str:string,start:long,length:long)