| 1 | .\" $Id: gettime.8,v 1.1 1997-12-15 00:35:49 cfields Exp $ |
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| 2 | .\" |
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| 3 | .\" Copyright 1997 by the Massachusetts Institute of Technology. |
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| 4 | .\" |
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| 5 | .\" Permission to use, copy, modify, and distribute this |
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| 6 | .\" software and its documentation for any purpose and without |
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| 7 | .\" fee is hereby granted, provided that the above copyright |
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| 8 | .\" notice appear in all copies and that both that copyright |
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| 9 | .\" notice and this permission notice appear in supporting |
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| 10 | .\" documentation, and that the name of M.I.T. not be used in |
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| 11 | .\" advertising or publicity pertaining to distribution of the |
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| 12 | .\" software without specific, written prior permission. |
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| 13 | .\" M.I.T. makes no representations about the suitability of |
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| 14 | .\" this software for any purpose. It is provided "as is" |
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| 15 | .\" without express or implied warranty. |
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| 16 | .\" |
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| 17 | .TH GETTIME 8 "13 Dec 1997" |
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| 18 | .SH NAME |
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| 19 | gettime \- synchronize system clock with remote host |
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| 20 | .SH SYNOPSIS |
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| 21 | .B gettime |
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| 22 | [ |
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| 23 | .B \-g granularity |
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| 24 | ] [ |
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| 25 | .B \-s |
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| 26 | ] |
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| 27 | .B hostname |
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| 28 | .fi |
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| 29 | .SH DESCRIPTION |
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| 30 | .I gettime |
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| 31 | is a simple program used to retrieve the time from a remote host |
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| 32 | (specified by the required |
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| 33 | .B hostname |
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| 34 | argument) using the UDP Time Protocol defined in RFC868. It displays |
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| 35 | the time acquired on the standard output. If the |
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| 36 | .B \-s |
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| 37 | option is specified and |
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| 38 | .I gettime |
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| 39 | is being run as root, the clock of the local workstation will also be |
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| 40 | set. If the |
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| 41 | .B \-g |
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| 42 | option is specified as well, the time will only be set if the |
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| 43 | workstation clock is more than |
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| 44 | .B granularity |
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| 45 | seconds out of synchronization with the remote host. |
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| 46 | .I gettime |
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| 47 | attempts to retrieve the time five times, with a five second timeout |
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| 48 | on each attempt. |
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| 49 | |
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| 50 | .SH AUTHOR |
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| 51 | Craig Fields, MIT Information Systems |
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| 52 | .br |
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| 53 | Copyright (c) 1997 Massachusetts Institute of Technology |
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