Nice article. Really easy to follow introduction.<p>I only discovered process substitution a few months ago but it's already become a frequently used tool in my kit.<p>One thing that I find a little annoying about unix commands sometimes is how hard it can be to google for them. '<()', nope, "command as file argument to other command unix," nope. The first couple of times I tried to use it, I knew it existed but struggled to find any documentation. "Damnit, I know it's something like that, how does it work again?..."<p>Unless you know to look for "Process Substitution" it can be hard to find information on these things. And that's once you even know these things exist....<p>Anyone know a good resource I should be using when I find myself in a situation like that?