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#!/bin/bash
#
# Usage: ./pingsizes.sh 1440 20 (or greater)
#
PINGDEST=${PINGDEST:-200.200.200.10}
k=$1
lim="$((k+$2))"
((k-=1))
while [ "$k" != "$lim" ] ; do
echo ping -s $((k+=1))
ping -i 1000 -c 1 -s $k $PINGDEST &
sleep 1
PID=`ps -eaf | grep 'ping -i' | sed 's/[ ][ ]*/ /g' | cut -d " " -f 2`
if [ -n "$PID" ] ; then
echo "****************** killing $PID"
kill $PID
fi
done
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