wal:tldr:aeb9d

The command 'wal -i ${image-png} -n' is used to generate a color scheme based on an input image (in PNG format) and apply it to various applications in a Linux environment.

Here's a breakdown of the command:

• 'wal' is the command itself, short for "pywal" or "pywalify," a tool used to generate and apply color schemes.
• '-i' is a flag that specifies the input file or image for generating the color palette. '${image-png}' is a placeholder indicating that the actual file name or path should be substituted there. For example, if the image is named "example.png," the command would be 'wal -i example.png'.
• '-n' is another flag that tells 'wal' not to display the generated color scheme on the screen.

Once you execute this command with a valid image file, 'wal' will extract colors from the image and generate a color scheme. The color scheme is then automatically applied to various applications like terminal emulators, text editors, and more, enhancing their visual appearance. The '-n' flag prevents the generated color scheme from being displayed, although it will still be applied to the specified applications.