cbatticon: add page (#11348)

pages/linux/cbatticon.md

@@ -0,0 +1,32 @@
+# cbatticon
+
+> A lightweight and fast battery icon that sits in your system tray.
+> More information: <https://github.com/valr/cbatticon>.
+
+- Show the battery icon in the system tray:
+
+`cbatticon`
+
+- Show the battery icon and set the update interval to 20 seconds:
+
+`cbatticon --update-interval {{20}}`
+
+- List available icon types:
+
+`cbatticon --list-icon-types`
+
+- Show the battery icon with a specific icon type:
+
+`cbatticon --icon-type {{standard|notification|symbolic}}`
+
+- List available power supplies:
+
+`cbatticon --list-power-supplies`
+
+- Show the battery icon for a specific battery:
+
+`cbatticon {{BAT0}}`
+
+- Show the battery icon and which command to execute when the battery level reaches the set critical level:
+
+`cbatticon --critical-level {{5}} --command-critical-level {{poweroff}}`