You can use three different versions of the regular expression syntax in grep: basic: -G extended: -E(POSIX)
This method will remove automatically installed packages that no other packages depend on any more. This, of course...
xargs is a powerful bash tool that can take input from $STDIN and pass it to a given command. I.e...
If you use awesome 3.5, and a gnome or mate panel, the panel will often receive focus when you switch...
If your external displays not switching on or showing a weird behavior (for e.g. all displays getting the same configuration...
When giving a presentation with a projector it is sometimes better to use a dual screen layout instead of a...
A Rake task appears in rake -T if it has a description: desc 'Compile assets' task :compile do ... end
In order to have monitoring for Sidekiq (like queue sizes, last run of Sidekiq) your application should have a monitoring...
You can have a command repeatedly executed and the output displayed. This is useful e.g. for monitoring file system changes...
If you want to find the commits that touched a specific text in a file, use git log -G 'text...
Run dconf-editor (as your user) Go to org / mate / panel / objects / clock / prefs Change the key format to custom...
SVG is an acronym for "scalable vector graphics". SVGs should be used whenever an image can be described with vector...
AWstats is build to regularly run on webservers. If you want it to build a report once, here is the...
To get your F12 key back for other shortcuts, stop Tilda: killall tilda To prevent Tilda from starting on boot...
I've encountered a Ubuntu 16.04 today, where localhost resolved to ::1 instead of 127.0.0.1. This will not usually make...
When you are calling Bundler from your shell scripts, you might find it useful that a failed bundle call returns...
A few releases back, Chrome started using a Material Design UI on desktop. If you don't like it (on...
Similar to our snippet that runs all Cucumber features matching a given string, the following will run all modified or...
Improve geordi cucumber: Only attempt @solo run when the specified files contain the @solo tag, skip @solo run if any...
You want Spring for super-fast binstubs like bin/rails or bin/rspec which avoid Rails boot time. You want parallel_tests...
On OSX (real or inside Browserstack), you need different keystrokes for your favorite special characters than you'd use on...
By convention, common protocols use a defined port, like 80 for HTTP or 443 for HTTPS. You can use nmap...
For some years Google Chrome has allowed you to add desktop icon for any web page by going to Tools...
So you downloaded a theme for Chrome a while ago and don't remember which one it is?