Get Image Dimensions from Command Line
The command line is a gold mine if you come from the perspective of a UI lover. Getting information from the shell instead of opening an app, finding a file or directory, etc...what a novel concept. Opening different image files opens up different apps on my Mac and, as the kids say, "ffs" -- I just want to know the image dimensions.
Using ImageMagick you can find the dimensions of an image from command line:
# Get the size of a JPG
convert photo.jpg -print "Size: %wx%h\n" /dev/null
# Size: 600x872
# Get the size of a PSD
convert website-design.psd -print "Size: %wx%h\n" /dev/null
# Size: 990x1200
You can get the image dimensions of any image type from PNG to JPG to GIF to even PSDs. And the resulting text is as plain as it could be. Dimensions...here you are.
![Create Namespaced Classes with MooTools]()
MooTools has always gotten a bit of grief for not inherently using and standardizing namespaced-based JavaScript classes like the Dojo Toolkit does. Many developers create their classes as globals which is generally frowned up. I mostly disagree with that stance, but each to their own. In any event...
![JavaScript Promise API]()
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...
![MooTools 1.2 OpenLinks Plugin]()
I often incorporate tools into my customers' websites that allow them to have some control over the content on their website. When doing so, I offer some tips to my clients to help them keep their website in good shape. One of the tips...
![JavaScript Canvas Image Conversion]()
At last week's Mozilla WebDev Offsite, we all spent half of the last day hacking on our future Mozilla Marketplace app. One mobile app that recently got a lot of attention was Instagram, which sold to Facebook for the bat shit crazy price of one...
I like to use ImageMagick’s identify command. Easy to remember and gives the size along with some other helpful info:
but that means having ImageMagick installed.
on a mac you have the native
sipscommand that returns info and modifies image files.ex. to get all sorts of info on an image just do:
more info on sips available at:
https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/sips.1.html
Wow, thanks for the heads up! I didn’t know about
sips!Wow! I always wonder why the command
fileis so unknown on the Mac?No need to install anything! Use
man filefor more information. Works for every kind of files, not just images: