spectacle:tldr:b3163

The command "spectacle --activewindow" is used to capture a screenshot of the currently active window on your computer screen using the spectacle tool.

"Spectacle" is a screenshot utility in KDE Plasma desktop environment, allowing users to capture screenshots or record screencasts with various options and customizations.

The "--activewindow" option in the command tells spectacle to capture only the active window on your screen, rather than capturing the entire screen or a specific region. It ensures that only the contents of the currently focused window will be included in the screenshot.

By executing this command, spectacle will automatically capture the screenshot of the active window and most likely save it in a preconfigured default location on your system, such as the Pictures folder. The captured screenshot can then be further processed or saved for later use.