Get File MIME Type from Command Line
I've gotten skilled at shell scripting over the years. I love a good GUI but knowing how to automate makes you a much more powerful engineer. Much of my scripting requires recursing over directories and processing a file if it meets a given criteria, which is often file extension or MIME type.
You can use the following shell command to get a file's MIME type:
file --mime-type -b Downloads/main.js
# text/plain
file --mime-type -b Downloads/logo.jpg
# image/jpeg
It's important to use the brief (-b
) option in the command or you may receive an error message.
MIME type is used for validation and any number of other informational use cases. Luckily the file
command and and a flag is all you need!
![9 Mind-Blowing Canvas Demos]()
The <canvas>
element has been a revelation for the visual experts among our ranks. Canvas provides the means for incredible and efficient animations with the added bonus of no Flash; these developers can flash their awesome JavaScript skills instead. Here are nine unbelievable canvas demos that...
![Create a Sheen Logo Effect with CSS]()
I was inspired when I first saw Addy Osmani's original ShineTime blog post. The hover sheen effect is simple but awesome. When I started my blog redesign, I really wanted to use a sheen effect with my logo. Using two HTML elements and...
![CSS Kwicks]()
One of the effects that made me excited about client side and JavaScript was the Kwicks effect. Take a list of items and react to them accordingly when hovered. Simple, sweet. The effect was originally created with JavaScript but come five years later, our...
![Multiple File Upload Input]()
More often than not, I find myself wanting to upload more than one file at a time. Having to use multiple "file" INPUT elements is annoying, slow, and inefficient. And if I hate them, I can't imagine how annoyed my users would be. Luckily Safari, Chrome...