End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Process::Sys.getuid

Process.uid → integer

Process::UID.rid → integer

Process::Sys.getuid → integer

static VALUE
proc_getuid(VALUE obj)
{
    rb_uid_t uid = getuid();
    return UIDT2NUM(uid);
}

Returns the (real) user ID of this process.

Example

Process.uid   #=> 501

See also .getgid .issetugid .geteuid .setegid also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0