Gloobus Preview is a preview software that lets you view files quickly without having to open them in their normal software. It is inspired by Apple’s Quicklook.
The default repositories of the Ubuntu OS do not include this app, so you will need to add it manually. First of all open the /etc/apt/sources.list file by typing the following command in the terminal.
Once the file is opened, append the following lines to the end of the file and save it.
deb https://ppa.launchpad.net/tualatrix/gloobus/ubuntu jaunty main
deb-src https://ppa.launchpad.net/tualatrix/gloobus/ubuntu jaunty main
Run the following command to update the Ubuntu repositories:
sudo apt-get update
Once it is finished, you are ready to install Gloobus Preview. The following command will do the trick for you.
sudo apt-get install gloobus-preview
That’s it, now in order to see the preview of any file or folder, simply select it and hit the Spacebar key on your keybaord, you will find its preview launched.
This tool supports the following file types C++, JAVA, PHP, SH, PYTHON, JPG, PSD, XCF, PNG, GIF, SVG, ICNS, PDF, CBR, CBZ, DOC, ODF, XLS, ODS, PPT, ODP, MP3, OGG, MP4, MIDI, WAV, MPG, AVI, OGG, FLV, WVM, and MKV.