How to check the value which my program returns?

Question

i have created a program in C. I would like to know, how to check the value which my program returns ... I mean, at the end of the code my program return zero if no error occurred. If an error occurred my program should return 1. And that's the problem, i want to see if really 1 is returned if something went wrong. For memory leaks, etc I am using valgrind on Linux. Thank you for any help.

Answer 1

You can just print the special shell variable $?, e.g.:

$ ./my_program ; echo "status = $?"