Generate web icons such as favicon and touch icons with a shell script, then display the markup needed to use them in your HTML.

To use, simply execute the webicon.sh shell script from the command line, passing the filename of your source image as the only argument. The following images are generated in the current directory:

• favicon-310.png
• favicon-256.png
• favicon-152.png
• favicon-150.png
• favicon-144.png
• favicon-114.png
• favicon-120.png
• favicon-72.png
• favicon-70.png
• favicon-64.png
• favicon-57.png
• favicon-48.png
• favicon-32.png
• favicon-16.png
• favicon.ico

The original image remains untouched.

Tip: place this script somewhere in your system's $PATH for easy access.

• *nix environment
• Image Magick for the convert command. (On OSX, brew install imagemagick)

• Concept from https://bergamini.org/computers/creating-favicon.ico-icon-files-with-imagemagick-convert.html
• Input from @pjkix
• Research by @audreyr in the favicon-cheat-sheet project