We work in very different places. Wherever I've worked, the guy who knows all these tricks is not the guy getting promoted. Senior management doesn't care about your shell or scripting skills. Sure - they make you more productive, but at a very local level (may be good for a single promotion early in your career).

Most senior engineers I've worked with have forgotten all these tricks, and they actively tell you that while you should try to get better at these things, career gains lie elsewhere. Focus on things with higher impact.