Colors is a quick "in-Terminal" reference chart for the most important ANSI color escape sequences which can be used to control colors in the output of commandline tools.
Copy colors.sh to /usr/local/bin or any other location that's accessible in your path (see $PATH environment variable). Alternatively rename it to just colors, or softlink, or alias it depending on your preference. It's just a simple shell script. No real installation necessary really.
- Quality of the output strongly depends on what the respective Terminal supports and how it is configured, e.g. with Mac OS X's
Terminal.appmultiple profile options change things (‘Use bold fonts’, ‘Display ANSI colors’, ‘Use bright colors for bold text’, ‘Allow blinking text’, the used font, etc.) - Unicode (UTF-8) support is required for the box drawing characters. It will look better with some fonts than with others, e.g. ‘Menlo Regular’ works pretty well for me.
I got tired of looking up random color IDs on the web, when I needed them. That's all. 😎