Shell Programming and Scripting

watch --no-title ./check1

#!/bin/bash

#total packets
nfdump ... > packets
#syn packets
nfdump ... > syn
#fyn packets
nfdump ... > fyn
#udp packets
nfdump ... > udp
#tcp packets
nfdump ... > tcp
#icmp packets
nfdump ... > icmp
#mail
nfdump ... > mail
#ssh
nfdump ... > ssh
#bytes
nfdump ... > bps

if [ -z "$1" ] || [ "$1" == 1 ] ; then
printf '%-15s %-8s %-8s %-8s %-8s %-8s %-8s %-8s %-8s\n' ip pckt1 tcp2 udp3 syn4 fyn5 icmp6 mail7 ssh8 > test1
for i in $(cat packets | awk {'print $2'})
do
pck=`cat packets | grep -E "\s$i\s" | awk {'print $3'}`
tcp=`cat tcp | grep -E "\s$i\s" | awk {'print $3'}`
udp=`cat udp | grep -E "\s$i\s" | awk {'print $3'}`
syn=`cat syn | grep -E "\s$i\s" | awk {'print $3'}`
fyn=`cat fyn | grep -E "\s$i\s" | awk {'print $3'}`
icmp=`cat icmp | grep -E "\s$i\s" | awk {'print $3'}`
mail=`cat mail | grep -E "\s$i\s" | awk {'print $3'}`
ssh=`cat ssh | grep -E "\s$i\s" | awk {'print $3'}`
if [ -z "$tcp" ];
then
tcp=0
fi
if [ -z "$udp" ];
then
udp=0
fi
if [ -z "$syn" ];
then
syn=0
fi
if [ -z "$fyn" ];
then
fyn=0
fi
if [ -z "$icmp" ];
then
icmp=0
fi
if [ -z "$mail" ];
then
mail=0
fi
if [ -z "$ssh" ];
then
ssh=0
fi

printf '%-15s %-8s %-8s %-8s %-8s %-8s %-8s %-8s %-8s\n' $i $pck $tcp $udp $syn $fyn $icmp $mail $ssh >> test1
done
cat test1

else
echo "usage explanation"
echo "" > test1
fi
sleep 2

if [ -t 0 ]; then stty -echo -icanon -icrnl time 0 min 0; fi
keypress=''
keypress="`cat -v`"