This is great but here are a few additions that I think are helpful when it comes to gathering information. 1. List all man pages of a specific section (e.g. s

This is great but here are a few additions that I think are helpful when it comes to gathering information. 1. List all man pages of a specific section (e.g. section 4): `man -k -s 4 . | sort` 2. Output all possible sections: `man man | head -25` 3. Sometimes there is no man page but GNU info can be used: `info ed` `info emacs` 4. A nice website to explain comands and oneliners is explainshell.com. It can also be queried from a terminal quite conveniently. 5. If you're like me, you'll probably often list all the system calls by listing all the pages in section 2. A better way might be to look at the linux source code directly (choose the right architecture): https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscall_64.tbl https://github.com/torvalds/linux/blob/master/arch/x86/entry...