20-network

20-network

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+interface=$(ip -o -4 route show to default | awk '{print $5}')
+
+nic_in=$(grep $interface /proc/net/dev | awk '{print $2}')
+nic_out=$(grep $interface /proc/net/dev | awk '{print $10}')
+
+function human_readable {
+        VALUE=$1
+        if ! [[ "$VALUE" =~ ^[0-9]+$ ]]; then
+                echo "0B"
+                return
+        fi
+        BIGGIFIERS=( B Kb Mb Gb )
+        CURRENT_BIGGIFIER=0
+        while [ $VALUE -gt 10000 ] ;do
+                VALUE=$(($VALUE/1000))
+                CURRENT_BIGGIFIER=$((CURRENT_BIGGIFIER+1))      
+        done
+        echo "$VALUE${BIGGIFIERS[$CURRENT_BIGGIFIER]}"
+}
+
+system_ip=$(hostname -I)
+
+echo
+echo "Network information:"
+printf "System IP:\t%s\n" $system_ip
+printf "Traffic in:\t%s\tTraffic out:\t%s\n" `human_readable $nic_in` `human_readable $nic_out`
+echo