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yorch/network_monitor.sh

Last active October 16, 2016 17:30
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  1. yorch revised this gist Oct 16, 2016. No changes.
  2. yorch created this gist Oct 16, 2016.
    30 changes: 30 additions & 0 deletions network_monitor.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,30 @@
    #!/bin/bash

    HOST=www.google.com

    while true ; do
    if ifconfig wlan0 | grep -q "inet addr:" ; then
    #$printf "WLAN connected, IP: %s\n" $(hostname -I)
    sleep 60
    else
    echo "Network connection down! Attempting reconnection."
    # First try
    ifconfig wlan0 down
    sleep 3
    ifconfig wlan0 up
    sleep 10
    iwconfig wlan0 essid any
    sleep 10
    ping -c 1 -W 10 $HOST &>/dev/null
    if [ $? -eq 0 ]; then
    exit
    else
    # Second try
    service networking restart
    iwconfig wlan0 essid any
    sleep 10
    ping -c 1 -W 10 $HOST &>/dev/null
    fi
    sleep 30
    fi
    done