If you need to schedule a set of commands to run at a future date in Linux, you should use “at” instead of cron. While cron works for regularly occurring tasks, “at” allows you to schedule one off items.
“PATH” is the environment variable that Linux uses to store a list of directories to search in when you execute a command. Sometimes, you need to be able to add your own directory to this list. Here’s a complete tutorial how, along with screenshots.
Sometimes you find the perfect theme, but you just need to change an element or two. Like the color of the menu perhaps. The theme customization option doesn’t always allow you to do this, so you need to write your own custom CSS. Here’s a detailed tutorial with screenshots on how to do that step by step.
Ideally, you would be able to install everything you want from your in-built package manager. Or failing that, build your package from source. Sometimes however, you have no option but to try and use a package from another Linux distro. In this tutorial, I show you how to use “alien” to migrate packages from one Linux flavor to another.
If you have a bunch of related processes that you want to manage together, you can put them together into a process group and manipulate them all at once. In this example, I show you how to use the “setsid” command to accomplish this.
It’s a good idea to send an e-mail to your subscribers who’ve signed up for post notifications. This way, you don’t have to rely on them getting the news from Facebook or Twitter. Here’s how to ensure a more targeted notification system using the MailPoet plugin.