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Adding support for outputting results as csv #48

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Adding support for outputting results as csv #48

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63 changes: 52 additions & 11 deletions dnstest.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,20 @@
command -v bc > /dev/null || { echo "bc was not found. Please install bc."; exit 1; }
{ command -v drill > /dev/null && dig=drill; } || { command -v dig > /dev/null && dig=dig; } || { echo "dig was not found. Please install dnsutils."; exit 1; }

TO_FILE=0
if [ $# -eq 1 ]
then
TO_FILE=1
OUTPUT_FILE=$1
if [ ! -f "$OUTPUT_FILE" ]
then
touch "$OUTPUT_FILE"
fi
elif [ $# -gt 1 ]
then
echo "Usage: ./dnstest.sh [file_path]"
exit 1;
fi


NAMESERVERS=`cat /etc/resolv.conf | grep ^nameserver | cut -d " " -f 2 | sed 's/\(.*\)/&#&/'`
Expand All @@ -25,23 +39,38 @@ PROVIDERS="
# Domains to test. Duplicated domains are ok
DOMAINS2TEST="www.google.com amazon.com facebook.com www.youtube.com www.reddit.com wikipedia.org twitter.com gmail.com www.google.com whatsapp.com"


totaldomains=0
printf "%-18s" ""
for d in $DOMAINS2TEST; do
totaldomains=$((totaldomains + 1))
printf "%-8s" "test$totaldomains"
done
printf "%-8s" "Average"
echo ""
if [ $TO_FILE -eq 0 ]
then
printf "%-18s" ""
for d in $DOMAINS2TEST; do
totaldomains=$((totaldomains + 1))
printf "%-8s" "test$totaldomains"
done
printf "%-8s" "Average"
echo ""
else
for d in $DOMAINS2TEST; do
totaldomains=$((totaldomains + 1))
printf "test%i," $totaldomains >> "$OUTPUT_FILE"
done
printf "Average,\n" >> "$OUTPUT_FILE"
fi



for p in $NAMESERVERS $PROVIDERS; do
pip=${p%%#*}
pname=${p##*#}
ftime=0

printf "%-18s" "$pname"
if [ $TO_FILE -eq 0 ]
then
printf "%-18s" "$pname"
else
printf "$pname" >> "$OUTPUT_FILE"
fi

for d in $DOMAINS2TEST; do
ttime=`$dig +tries=1 +time=2 +stats @$pip $d |grep "Query time:" | cut -d : -f 2- | cut -d " " -f 2`
if [ -z "$ttime" ]; then
Expand All @@ -51,12 +80,24 @@ for p in $NAMESERVERS $PROVIDERS; do
ttime=1
fi

printf "%-8s" "$ttime ms"
if [ $TO_FILE -eq 0 ]
then
printf "%-8s" "$ttime ms"
else
printf "%i," $ttime >> "$OUTPUT_FILE"
fi

ftime=$((ftime + ttime))
done
avg=`bc -lq <<< "scale=2; $ftime/$totaldomains"`

echo " $avg"
if [ $TO_FILE -eq 0 ]
then
echo " $avg"
else
printf "%.2f,\n" "$avg" >> "$OUTPUT_FILE"
fi

done


Expand Down