Most of the time when you want to debug your code or someone code which separates in many files, you need to know or locate where this function is defined or where this function called. You will waste so much of your time when you open your files one by one. So what is the solution then?Most of Linux distribution will have "grep" function installed. You can use grep to find a pattern of string contain in files. Let's say you want to find a function named "my_defined_function" in folder … Read more...