iw: add page (#2289)

pages/linux/iw.md

@@ -0,0 +1,19 @@
+# iw
+
+> Show and manipulate wireless devices.
+
+- Scan for available wireless networks:
+
+`iw dev {{wlp}} scan`
+
+- Join an open wireless network:
+
+`iw dev {{wlp}} connect {{SSID}}`
+
+- Close the current connection:
+
+`iw dev {{wlp}} disconnect`
+
+- Show information about the current connection:
+
+`iw dev {{wlp}} link`