Table of contents

• Definition
• Details
• Requirements
• Contact
• Useless facts

The FadeFX function allows printing a string with a fading effect, e.g. white to black and vise versa in a loop.

You can find more text printing effects here.

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Notice that this a shell function and not a standalone script.

The given string is printed using two color numbers taken from a color palette used by the shell, see here.

The delay of fading must be given in seconds, so you can use a slow fade effect or fast one using milliseconds, which looks the more kind of flashing. Notice that flashing can lead to seizures if you are prone to such.

The function can take four arguments:

1. The string that should be faded.
2. The minimum color number, e.g. 232 for black.
3. The maximum color number, e.g. 255 for white.
4. The fade delay (in seconds) between each color, e.g. 0.02.
5. An optional non-fading string that should be printed before the fading text.
6. An optional non-fading string that should be printed after the fading text.

The following code

fadefx "This is an example." 232 255 0.02

produces this output:

You can also print an additional string before and after the fading one, for example:

fadefx "example" 232 255 0.02 "This is an " " with additonal strings."

Furthermore, those strings also allow custom colors. However, they must be given in the classic Bash shell way:

fadefx "example" 232 255 0.02 "\e[96mThis\e[0m \e[93mis\e[0m an " " with \e[92mcolors\e[0m in \e[95madditonal\e[0m strings."

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The function was written on the Bash shell, which is the default shell on many Unix-like systems (or at least Linux distributions). It may also work with other shells, however, there is no guarantee for that.

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Any suggestions, questions, bugs to report or feedback to give?

You can contact me by sending an email to dev@urbanware.org or by opening a GitHub issue (which I would prefer if you have a GitHub account).

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• The project name is an abbreviation for Fade Effects.

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