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Command: rdate | Section: 8 | Source: Digital UNIX | File: rdate.8.gz
rdate(8) System Manager's Manual rdate(8)
NAME
rdate - network date client
SYNOPSIS
/usr/sbin/rdate [ -s ] [ -v ] [ network ]
DESCRIPTION
The rdate command is invoked at boot time to reset the system date and
time to the current network date and time. The rdate program sends a
broadcast datagram packet on the specified network or on the system de-
fault network if no network is specified. The program will then wait
two seconds for responses. After that time, the arithmetic median of
the responses is taken.
FLAGS
-s The system date and time will be set to the median value.
-v The time values returned by all responding hosts will be reported.
RESTRICTIONS
In order for rdate to determine a network time, at least one of the
running hosts on the network must be running the internet time service.
Machines with their own battery-backed-up time-of-day clock may not de-
sire to set time in this manner.
RELATED INFORMATION
date(1) delim off
rdate(8)