self.blog(subject=random.choice(['mac', 'python', 'everything else'])) One of the most important tools for sysadmins and programmers working in the Linux/BSD environment is called strace. As it took me some time to find out where is “strace for Mac”, I thought it would be worth documenting here… Making a long story short: in Tiger it was called ktrace, in Leopard it’s called dtrace, but it’s simpl