"I've spent the past decade mostly leading my own research projects. This meant that I did the majority of the command-line bullshittery and programming to produce the results that led to publications, especially ones where I was the first author. In short, I've gotten very, very, very good at command-line bullshittery."

You mean you learned a new skill and got better at it? Your example suggests that there's only one way to improve your skills when it comes to working with "command-line bullshittery"