Comment by Nathaniel Ng on "Is it good to be a jack of many programming languages or a master of few?"

Both. I'm thinking along the lines of being a "T-shaped professional":

deep skills in about 1-3 languages (in my case, it's C & Python).
wide skill set across a handful of languages & skill sets (entry-level to intermediate knowledge). In many cases, languages such as bash/unix command line, html, and SQL would go here. In terms of skill set: git would go here (git isn't really a language)

Specialize enough in one area so that people know you are the "expert" or "go to person" for anything related to that area. This is the area people remember you for. But being broad across skill sets helps in working with others as well as having a broader perspective.

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