localectl: add page (#7272)

pages/linux/localectl.md

@@ -0,0 +1,24 @@
+# localectl
+
+> Control the system locale and keyboard layout settings.
+> More information: <https://www.freedesktop.org/software/systemd/man/localectl.html>.
+
+- Show the current settings of the system locale and keyboard mapping:
+
+`localectl`
+
+- List available locales:
+
+`localectl list-locales`
+
+- Set a system locale variable:
+
+`localectl set-locale {{LANG}}={{en_US.UTF-8}}`
+
+- List available keymaps:
+
+`localectl list-keymaps`
+
+- Set the system keyboard mapping for the console and X11:
+
+`localectl set-keymap {{us}}`