headtail
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CleanCut
head and tail simultaneously
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We should add unit tests covering most of our logic, though we probably don't need any for the argument parsing giving it's a pretty straightforward usage of `clap`.
For sure: - [ ] Video or [asciinema](https://asciinema.org/) of `headtail` in action - [ ] Quick story about how `headtail` came about (problem that prompted it -> our DoL session)....
Add integration tests covering: - `-f/--follow` - `-s/--sleep-interval`
This is a very interesting and useful utility. I believe it would be particularly helpful if some demarcation such as `...` or some other separating line (perhaps even colorizing it...
