title: Handling arguments array of execvp?
body: <p>When I call <code>execvp</code>, for example <code>execvp(echo, b)</code> where b is an array of arguments for the command a, will changing this array later affect the execvp call made previously? When I try calling execp(echo, b), it ends up printing out (null) instead of the content inside of b. Can anyone point out why and what I have to do to pass the arguments correctly?</p>