exec - unix 中 exec 系列的任何函数都不会忽略 SIGINT 吗？

Question

是否可以启动一个进程exec并让该进程在后台运行，并且（不像System()），kill一旦将中断信号传递给创建它的父进程，该进程是否会被编辑？

Answer 1

Yeah. Ignoring SIGINT is a behavior specific to system(). If you roll your own system() using fork() and execl(), you won't get that.

Of course, unless you're really careful you're going to make zombies.