End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Process.pid

Process.pid → integer

static VALUE
proc_get_pid(VALUE _)
{
    return get_pid();
}

Returns the process id of this process. Not available on all platforms.

Example

Process.pid   #=> 27415

See also .maxgroups= .ppid .maxgroups .setpgid also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1