Go ahead and skip right to the examples if you’re in a hurry Got Regexes? Regular Expressions (also known as regexes, regexen, and regexps) open up a world of new power tools to you when you need to automate text … Continue reading
Please feel free to experiment with the following ~/.bash_profile goodness of my own, and save away to yours what tasty morsels that you find useful. Exactly what each line does below is left as an exercise to the reader … Continue reading
denyhosts is an excellent utility to prevent brute-force SSH attacks against your server. One shortcoming it has is that it is difficult to get a blacklisted IP address back out of the, well, blacklist. Simply removing its entry from /etc/hosts.deny … Continue reading
Do you ever need to/want to know how hot your processors are running? There’s a way! Sure, there are handy gui tools for things like this, but for our purposes, sometimes a quick, clean little shell code snippet gets the … Continue reading
You can send out an "alert" email when someone logs in to your server (or workstation) by taking two steps*. Now if you prefer to send the alert to your smart phone instead of your inbox, you can easily apply … Continue reading