ntptest.sh

#!/bin/bash
# ./ntptest.sh shell script for NTP server using netcat
# Israel Torres
# Tue Aug 16 10:44:38 PDT 2011
#
if [ ! $# -lt 1 ]; then
NTPSERVER=$1
echo "Testing $NTPSERVER"
echo -n '[   !!!!0000NONE111111112222222233333333Success!' | nc -w 1 -u $NTPSERVER 123 | grep 'Success!' 1> /dev/null && echo "$NTPSERVER appears good!" || echo "$NTPSERVER is not running NTP."
else
echo "usage: $0 'NTPSERVER'"
echo "example: $0 time.apple.com"
fi

#EOF