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.config/i3blocks/bandwidth3/README.md

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+# bandwidth3
+
+Monitor bandwidth usage.
+
+![](bandwidth3.png)
+
+# Usage
+
+```
+[bandwidth3]
+command=$SCRIPT_DIR/bandwidth3
+interval=persist
+markup=pango
+#LABEL=<span font='FontAwesome'>  </span>
+#IFACE=[automatically determined]
+#DT=3
+#UNIT=Mb
+# Exposed variables: rx, wx, tx, unit, iface
+#PRINTF_COMMAND=printf "${LABEL}%-5.1f/%5.1f %s/s\n", rx, wx, unit;
+```
+
+Note that the interface will be guessed using `ip route` but it can also be specified 
+using the `$IFACE` property.
+On the fly interface switching is not supported, if you change
+your default interface, simply issue `i3-msg restart` and the script will pick
+up on the new default. However, the block will wait until a default interface
+is found upon starting, so no restart is needed if you start i3 and then connect 
+to wifi later.