Ever wanted to send emails using just Python? A few lines of code and you don’t even need to log into your Gmail account to email anyone in the world. In fact, you can do this in your terminal. First, open up your terminal and create a file. I will call mine “emailer.py”. nano emailer.py Now, let’s add som…

Most of the RSS feeds in my Liferea RSS reader have external links in their brief, descriptive texts, like this one from The Guardian newspaper: News feeds from the Australian Broadcasting Corporation (ABC), Australia's national broadcaster, don't have links: To see the the online ABC news…

A non-breaking space (NBSP) is a special kind of whitespace. It's an invisible signal that tells a text-processing program to avoid replacing that space with a linefeed or carriage return. For example, if you wrote "2 kg" in LibreOffice Writer and didn't want the "2" to be at…

There's always more than one way to do a job in the shell, and there may not be One Best Way to do that job, either. Nevertheless, different commands with the same output can differ in how long they take, how much memory they use and how hard they make the CPU work. Out of curiosity I trialled 6…

Do you translate blocks of text by copying them and pasting into Google Translate in a browser? If you do, the script explained here might save you a lot of work. At the core The script relies on translate-shell, a wonderful command-line utility written by Mort Yao and available in the repositories…

Several of my data-auditing scripts take a long time to execute. Until recently I had no way of knowing how long they'd take. I'd enter the command for the script, press Enter and wait. And wait. I've now discovered the pipeline viewer or pv command, which tracks the progress of my scripts. An…

Back in March 2015 I blogged about a track-changes script that reports the edits made to a tab-separated data table. The script actually generates two reports: a plain text version and a fancy HTML version. A slightly improved version of that script is on my data-cleaning website here. The script…

If you're a gamer, you probably find your computer's default CPU scaling (usually the "balanced" or "powersave" setting) is more than sufficient the majority of the time, but just occasionally, a game will run at its best when the CPU is set to maximum frequency all the time,…

Each of the two file managers I use — Thunar and Xfe — allows me to open a terminal in a selected directory. In Thunar, I right-click on a directory and choose Open Terminal Here, and in Xfe I use the keyboard shortcut Ctrl + t. In both cases, though, the terminal window opens right on top of the fil…

Microsoft has used two different starting points on the calendar for calculating dates in different versions of their Excel spreadsheet program. Really. Microsoft explains the difference here. One version used 1 January 1900 for serial day numbering, the other used 1 January 1904. Of course, up to…