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- #!/bin/sh
- # setclock: set the system's CMOS and system times from the network.
- # Copyright 1994-6 John A. Phillips - john@linux.demon.co.uk
- # usage: setclock [GMT|local]
-
- # Set the zone for the CMOS clock if specified, or use the default.
- zone=${1:-GMT}
-
- # Assign the servers to set the system date and time. If you use more
- # than one time server it takes longer but you get more reliability.
- # servers="ntp.demon.co.uk"
- servers="ntp.demon.co.uk ntp1.demon.co.uk ntp2.demon.co.uk"
-
- # Assign a temporary file.
- tmpfile=/tmp/demon.time.$$
-
- # Check for valid zones.
- if [ $zone != "GMT" -a $zone != "local" ]; then
- echo "usage: setclock [GMT|local]"
- exit 1
- fi
-
- # Make sure we clean up on any exit
- trap "rm -f $tmpfile" 0
-
- # Set the system date and time from the list of servers.
- /usr/sbin/netdate $servers >$tmpfile 2>&1
-
- # Set the system's CMOS clock from the system date and time.
- if [ $zone = "local" ]; then
- /sbin/clock -w >>$tmpfile 2>&1
- else
- /sbin/clock -u -w >>$tmpfile 2>&1
- fi
-
- # Show the date and time.
- /bin/echo ""
- /bin/cat $tmpfile
- /bin/echo ""
-