Example 1. posix_getgid() example
This example will print out your real group id, even once you have changed your effective group id.
|posix_getgrgid() for information on how to convert this into a useable group name|
|posix_getegid() get effective group id.|
|posix_setgid() change the effective group id|
|POSIX man page GETGID(2)|
Returns the real group id, as an integer.