not sure if its what your looking for but you could look at builtins/printf.def
as a starting point. it implements the printf builtin function. Am 20.03.2012 20:29, schrieb runicer:
I have bash-4.2.tar.gz What inside this, All source code .c/.h , configuration file. I want to find where is the print standard output function and add my script like sed 's,Hello,Hi,gI'before it printed. The result will be every standard output with the hello word will change to Hi word.