Bash

Some time ago I was in the situation where I was looking at 200 MyISAM tables screaming to get converted to InnoDB for performance reasons. You probably know that MyISAM is better at full-text searches and such, but what I needed was this database stop locking entire tables when I was just doing row-level interactions. Here's how I did **in one go**.

If you store application data in memcache, you may want to invalidate it once you deploy a new version to avoid corruption or weird results. There are several ways to do this but I recently tried one using nothing but Bash, and I like it.

Ever wanted to change the crontab of a server, but got an editor on screen that you're totally unfamiliar with? There are a lot of causes for this annoyance, but one is that somebody recently installed or used midnight commander (mc) which for whatever reason seems to override your session's default editor.