first commit

.gitignore

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+*~

etherswitch.sh

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+#!/bin/env bash
+
+STATE=0
+
+source ~/.etherswitch
+
+while :
+do
+    ip link show $interface | grep -q "LOWER_UP" 
+    if [ $? -eq 1 ]
+    then
+	if [ $STATE -eq 1 ]
+	then
+	    STATE=0
+	    echo "not connected"
+	fi	    
+    else
+	if [ $STATE -eq 0 ]
+	then
+	    STATE=1
+	    echo "connected"
+	fi
+    fi
+    sleep 0.3
+done
+