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|
#!/bin/bash
# Updates by Sascha Silbe
usage() {
cat << EOF
Usage: ntpclockset [options] <NTP server>
Example: ntpclockset -q 192.168.0.1
Options:
--quiet (-q) be quiet (only show errors)
--help (-h) show this text and exit
EOF
exit 1
}
quiet=0
for curArg in "$@" ; do
case "${curArg}" in
-q|--quiet) quiet=1;;
-h|--help) usage;;
-*) echo "Invalid option '${curArg}'"
usage;;
*) NTPSERVER="${curArg}";;
esac
done
[ -z $NTPSERVER ] && NTPSERVER=`dnsip pool.ntp.org | awk '{print $1}'`
tmpfile="`mktemp`"
# display how much your clock is off by
if ! sntpclock $NTPSERVER > ${tmpfile} ; then
echo "!!! Could not contact NTP server: $NTPSERVER" >&2
exit 2
fi
if [ ${quiet} -eq 0 ] ; then
echo ">>> Current clock sync:"
cat ${tmpfile} | clockview
echo
echo -n ">>> Now setting clock ..."
fi
cat ${tmpfile} | clockadd
if [ ${quiet} -eq 0 ] ; then
echo " [ok]"
echo -n ">>> Writing time to hardware clock ..."
fi
/sbin/hwclock --systohc
if [ ${quiet} -eq 0 ] ; then
echo " [ok]"
echo
echo ">>> New clock sync:"
sntpclock $NTPSERVER | clockview
fi
rm -f ${tmpfile}
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