Fair point, but for scripting I don't feel fish (or zsh) offer an advantage big enough to bother learning that language with their rather narrow scope. But bash it's good to anyways know, you don't really get around it either. Larger/more complex scripts I write in other languages (depending on domain I and other requirements I guess). It's also not that I daily write those scripts on my shell, so I also think that even if I learned fish or zsh, I would have to look up things again every time I need to write something again.