Plurrrr

For many using Unix-derived systems today, we take for granted that /some/path and /some/path/ are the same. Most shells will even add a trailing slash for you when you press the Tab key after the name of a directory or a symbolic link to one.

However, many programs treat these two paths as subtly different in certain cases, which I outline below, as all three have tripped me up in various ways¹.

Perl has two operators, cmp and <=>, which are basically never seen outside of sort blocks.

That doesn’t mean you can’t use them elsewhere, though. Certainly sort and these operators were designed to work seamlessly together but there isn’t anything sort-specific about the operators per se, and in some contexts they can be the most appropriate solution.

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python 3.6+ asyncio framework.