Hot on the heels of the last post, a topical tip

<dammit> When debugging hideously long RegEx patterns for shellscripting server tasks, ensure that you haven't crafted a clever-arsed RegEx multi-piped one-liner with grep instead of egrep. This will avoid you wasting 45 minutes slaving away at an online RegEx builder convinced there must be a bug in the website code. </dammit>