File Extension Change Shortcut
Changing the extension of a file seems like something you would do often enough to know how to do it from command line. One annoying part of moving a file is repeating the file name a second time when all I want to do is change the extension. A minor annoyance but an annoyance nonetheless.
I recently found that you can quickly change a file's extension with this handy shortcut:
# mv filename.{old,new}
mv code.{txt,js}
The braced syntax provides a way to quickly swap out the file extension without needing to repeat the file name. Sweet!
![5 Ways that CSS and JavaScript Interact That You May Not Know About]()
CSS and JavaScript: the lines seemingly get blurred by each browser release. They have always done a very different job but in the end they are both front-end technologies so they need do need to work closely. We have our .js files and our .css, but...
![Responsive Images: The Ultimate Guide]()
Chances are that any Web designers using our Ghostlab browser testing app, which allows seamless testing across all devices simultaneously, will have worked with responsive design in some shape or form. And as today's websites and devices become ever more varied, a plethora of responsive images...
![MooTools Accordion: Mouseover Style]()
Everyone loves the MooTools Accordion plugin but I get a lot of requests from readers asking me how to make each accordion item open when the user hovers over the item instead of making the user click. You have two options: hack the original plugin...
![Google Extension Effect with CSS or jQuery or MooTools JavaScript]()
Both of the two great browser vendors, Google and Mozilla, have Extensions pages that utilize simple but classy animation effects to enhance the page. One of the extensions used by Google is a basic margin-top animation to switch between two panes: a graphic pane...
This does not only work for file extensions. You can generally use the curly braces syntax to “generate” multiple words/arguments for a bash command: http://www.gnu.org/software/bash/manual/bashref.html#Brace-Expansion