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linuxprocesspid

Changing the process ID (PID) in Linux

Is it possible to change the PID in Linux? If anyone know, please tell me.

Requirement: actually I want to bring up the back ground process to foreground, which is being run under the init. So if I can change the PID or parent PID of the process, I can achieve my goal.

Solution

  • No, it's not possible to do such a thing on Unix. You might be able to use fork to achieve this effect, but you have to tell us what you are trying to achieve.

    pid_t pid;

/* I want a new PID. */
pid fork();
if (pid == 0) {
    /* getpid() will show I've got a new PID. */
else
    _exit(0); /* Parent or check for -1 (tinfoil hat)

    Obviously, like I said before, you "might" be able to use this.