Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
class method
File.setuid?
File.setuid?(file_name) → true or false
file.c
View on GitHub ↗
static VALUE
rb_file_suid_p(VALUE obj, VALUE fname)
{
#ifdef S_ISUID
return check3rdbyte(fname, S_ISUID);
#else
return Qfalse;
#endif
}
Returns true if the named file has the setuid bit set.
file_name can be an IO object.