ping_tester.sh - A collection of basic tests for internet connections

ping_tester.sh

#!/bin/bash
# ping_tester.sh
# A collection of basic tests for internet connections, like troubleshooting your ISP
# Useful for logging long running tests to file
# Created 2021-01-01 - updated 2021-02-05
# Written for Siduction (Debian sid based distro)
# By dpanter https://gist.github.com/dpanter
# requires speedtest-cli (provided by Debian package _speedtest-cli_)

# setting up variables
LOGFILE=ping_tester_$(date +'%Y-%m-%d_%H.%M.%S').log
PINGTRACE=sunet.se
WGETFILE=http://ftp.sunet.se/mirror/debian/dists/stable/main/Contents-amd64.gz
RUNSDELAY=300  # seconds between runs
VPN=1  # disable if no vpn in use or edit status command for your provider

# Stuff the logfile with "pretty" lines for readability
echo "----------------------------------------------------------------------------" >> "$LOGFILE"
echo "--- `basename $0` - internet tests starting" `date` "---" >> "$LOGFILE"
sleep 2

if [ $VPN = 1 ]; then
   echo "------------------------------------------------------------------------------------" >> "$LOGFILE"
   echo "--- Mullvad VPN" `mullvad status` "---" >> "$LOGFILE"
   sleep 2
fi

echo "------------------------------------------------------------------------------------" >> "$LOGFILE"
echo "--- Network interfaces -----------------------------------------------------" >> "$LOGFILE"
ip -br address >> "$LOGFILE"
sleep 2
echo "----------------------------------------------------------------------------" >> "$LOGFILE"

# Main testing loop
RUNS=0
while true; do
   RUNS=$((RUNS+1))
   #mark starting time
   scriptstart=`date +%s`
   echo "--------------------------------------------------------------------------------------------" >> "$LOGFILE"
   echo "--- `basename $0` - test run ""$RUNS"" started ---" >> "$LOGFILE"
   echo "--------------------------------------------------------------------------------------------" >> "$LOGFILE"
   echo "--- ping ---" >> "$LOGFILE"
   echo "------------" >> "$LOGFILE"
   ping -c 5 "$PINGTRACE" | tee -a "$LOGFILE"
   sleep 2
   echo "-------------------" >> "$LOGFILE"
   echo "--- traceroute  ---" >> "$LOGFILE"
   echo "-------------------" >> "$LOGFILE"
   traceroute "$PINGTRACE" | tee -a "$LOGFILE"
   sleep 2
   echo "-------------" >> "$LOGFILE"
   echo "--- wget  ---" >> "$LOGFILE"
   echo "-------------" >> "$LOGFILE"
   wget -a "$LOGFILE" --progress=bar:force:noscroll --output-document=/dev/null "$WGETFILE"
   sleep 2
   echo "----------------------" >> "$LOGFILE"
   echo "--- speedtest-cli  ---" >> "$LOGFILE"
   echo "----------------------" >> "$LOGFILE"
   speedtest-cli | tee -a "$LOGFILE"
   #mark ending time and calculate time elapsed
   scriptend=$((`date +%s`-scriptstart))
   #print time elapsed in readable format, minutes and seconds
   echo "--------------------------------------------------------------------------------------------" >> "$LOGFILE"
   echo "--- `basename $0` - test run ""$RUNS"" finished" `date` "= $(($scriptend / 60)) min, $(($scriptend % 60)) sec ---" >> "$LOGFILE"
   echo "--------------------------------------------------------------------------------------------" >> "$LOGFILE"
   echo -e "\n\n" >> "$LOGFILE"
   sleep $RUNSDELAY
done