shell in go

• Reference

https://missing.csail.mit.edu/2020/shell-tools/ https://12days.cmdchallenge.com/ https://www.commandlinefu.com/commands/browse/sort-by-votes https://aosabook.org/en/v1/bash.html https://blog.init-io.net/post/2018/07-01-go-unix-shell/

• Challenges

Quoting