ImageMagick has a command line tool called identify which can read image metadata: >identify -verbose DSC00136.JPG Image: DSC00136.JPG Format: JPEG...
Collection of useful tools in the Chrome JavaScript console. Make the whole page editable This is not special to Chrome...
Plot graphs in Ruby WebGraphviz renders in your browser via JavaScript (to store the rendered graph, extract the SVG using...
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 are fine with the default console diff most of the time but only sometimes want to use an...
Here is a symbol of an eight note: ♪ Its two-byte hex representation is 0x266A. This card describes how to...
For some years Google Chrome has allowed you to add desktop icon for any web page by going to Tools...
Chrome's developer tools automagically choose vertical or horizontal panel layout, based on their width. You can disable that magic...
Instead of using this hack you might want to use MariaDB 10.x which can work with both old and...
Tool to show you which gems are slow to load: ➜ git:(master) ✗ bundle exec bumbler [################################################# ] (49/65) travis-lint...
Current webkit browsers like Chrome and Safari have a special variable in their consoles that refers to the selected DOM...
TL;DR There are three dimensions you can control when scoping routes: path helpers, URL segments, and controller/view module.
Talking with APIs makes more fun using Postman. As an alternative you can also use command line tools like cURL...
Dashboard (Marvel Kibana) and query tool (Marvel Sense) for Elasticsearch. Once installed you can access Kibana and Sense at these...
Ever wondered how you can create a simple table output in bash? You can use the tool column for creating...
rack-mini-profiler is a powerful Swiss army knife for Rack app performance. Measure SQL queries, memory allocation and CPU...
Installing SSL certificates usually implies additionally using intermediate certificates. If one of them is missing, some SSL client implementations might...
Our applications not only need to be functional, they need to be fast. But, to quote Donald Knuth, premature optimization...
When working with PostgreSQL, you can use pgAdmin as a GUI. While you can do most things just like on...
As the web is being used for more and more tasks, expectations rise. Not only should web pages offer rich...
If you have problems installing a gem and get a error collect2: error: ld returned 1 exit status it's...
Moved from Less to Sass. Bootstrap now compiles faster than ever thanks to Libsass, and we join...
Disabling auto-complete in login forms is probably a bad idea, since it encourages weak passwords. If you are still...