I think this misses the obvious. Aliases are aliases. They save typing in a shell. Actually putting them in your PATH... is kinda sketchy, as PATH is a globa

I think this misses the obvious. Aliases are aliases. They save typing in a shell. Actually putting them in your PATH... is kinda sketchy, as PATH is a global namespace used by everything. You almost certainly don't want exec(2) picking up the random short letter names you'd be littering in PATH.