So, I have this textfile, and it consists of mostly alphanumeric characters. It's a standard document. But since I copied it and pasted it from a PDF, there are page numbers in there. I don't much care for the occasional number that's not a page, so I figure I'll wipe them all out with
tr. Just marginally faster than find and replacing first zero, then one, then two, etc. in the GUI, after all.
So how do I do that?