This should work on any of the various Ubuntu spins including Xubuntu and Lubuntu. Most likely you won’t have mp3info installed, even if you have all of the MP3 libraries intact, so you’ll need to use sudo apt-get install mp3info on Debian or Ubuntu-based distributions to get a hold of it. While few MP3 editors would use the virtual console, these tricks should work at them as well. You’ll need to have a prompt open, so make sure you either search for it on the Unity Dash, start it from the System menu in Xfce4’s Whisker menu or the LXDE Application menu or perhaps hold down Ctrl, Alt and T to open a terminal box. In either case, it shouldn’t be difficult to find MP3 durations from the Linux command line.
There are a few ways to use it, but there are also a few other utilities that might make the process easier. Linux users who are used to working with music files from the command line might already be using ffmpeg, but it’s difficult to extract just the length of a file using this otherwise powerful tool.
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