Where to find .desktop files on Ubuntu
.desktop files define launchers for applications installed on your machine. They specify the command that will be executed when launched, icons, titles, etc. There are two directories in which these files are stored:
# basic installation
/usr/share/applications
# installed via snap
/var/lib/snapd/desktop/applications/
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How to fix: RubyMine / IntelliJ "find file" dialog losing focus on awesome wm
Many of our developers love to use the "awesome" window manager on Linux. However, RubyMine dialogs occasionally defocus while typing.
Here is a fix for that, tested on awesome 3.4, 3.5 and 4.0 (Ubuntu 14.04 and 16.04).
Problem
Consider the...
Printing to PDF files on Ubuntu
This will install a printer called "PDF":
sudo apt-get install cups-pdf
Files will be put into ~/PDF/ without any questions asked.
RubyMine: How to restore the Back to last position shortcut on Ubuntu 20.04
I really love to use the shortcuts CTRL+Alt+ Arrow Left and CTRL+Alt+ Arrow Right to navigate through the code. It worked great on Ubuntu 18.04 and MATE but after migrating to my new notebook with GNOME and Ubuntu 20.04, I realized tha...
How to open files from better_errors with RubyMine on Linux
I recently noticed that better_errors allows you to to open files from within your favorite editor. However it was not so easy to get rubymine:// links to work ...
How to install older versions of REE with rbenv on Ubuntu 12.04
Rbenv won't compile REE 2011.03 properly on Ubuntu 12.04, failing with an error in tcmalloc.cc.
If you want to keep tcmalloc functionality, you can do it like this:
- Open
~/.rbenv/plugins/ruby-build/share/ruby-build/ree-1.8.7-2011.03 - Re...
How to enable the Thinkpad microphone mute key on Ubuntu 16.04
While the hardware mute button of my Lenovo x230 worked on Ubuntu 14.04 out of the box, it does not on Ubuntu 16.04. It is fairly simple to fix, though.
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Upgrade to LibreOffice 5.x on Ubuntu
Getting rid of your old LibreOffice
Remove your old LibreOffice:
sudo apt-get remove libreoffice*
You probably also want to get rid of the dead PPAs you might have installed for LibreOffice 4.x:
- Op...
Linux: How to print PDF files from the command line
Sometimes you may want to print files from the command line, especially when you have lots of them.
You can use lp for that.
To print a single example.pdf file on your default printer, simply say:
lp example.pdf
lp accepts multipl...
How to find out what is running on a port on a remote machine
By convention, common protocols use a defined port, like 80 for HTTP or 443 for HTTPS.
You can use nmap to find out what service is running behind a given port, and most often see some details about it. This can be helpful if servers don't offe...
Where to keep project files that should not go to Git
Sometimes you have a file that is related to a project, while not actually being part of it. You'd like to keep them around, but others won't need them – e.g. some notes, a log, or a database dump.
Sure, you have a project directory – but all ...