AboutThis is a technology blog by Matthias Friedrich, a software developer and architect from Karlsruhe, Germany. more ...
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Tag Archives: scripting
The sed(1) stream editor is one of the most powerful tools from the classic Unix tool box. It is a close cousin to the ed(1) command line editor and a descendant of the ex(1) editor, the command line mode of … Continue reading
On Linux/Unix systems, there’s occasionally the need to check whether a process is running. Some people use it for simple status checks or when building their own lifecycle scripts for startup and shutdown. I don’t think it’s a particularly good practice … Continue reading
I couple of months ago I bought a Sonos Play:1, a pretty cool wireless speaker that comes with free controller apps for major platforms (Android, Windows etc.). To give the speaker access to my music collection, I hooked up a … Continue reading
Sometimes it’s useful to trigger an action after a file is closed. Suppose you started a lengthy download on your notebook and you want to suspend it as soon as the download is done. There are several ways to achieve … Continue reading
Classic Bourne Shell has a handy feature that many people don’t seem to know: Parameter Expansion. Stephen Bourne describes it in An Introduction to the UNIX Shell, which is part of the original Unix V7 manuals from 1978. Among other … Continue reading