of a program is to look for it just before it is used. The following function should be used at the beginning of a function that makes use of external programs.
mbfl_program_check progr... which we can declare the intention of a script to use a set of programs; a command line option is predefined to let the user test the availability of all the declared progra... _exit_program_not_found.
This function should be used to retrieve the pathname of the program to be used as first argument to mbfl_program_exec.
mbf... ered for signum. This function is not meant to be used during normal scripts execution, but it may be useful to debug a script.
Manipulating strings
Str
