1NTPWAIT(8)                          NTPsec                          NTPWAIT(8)
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NAME

6       ntpwait - wait for ntpd to stabilize the system clock
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SYNOPSIS

9       ntpwait [-vV] [-n number] [-s secs]
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DESCRIPTION

12       The ntpwait program blocks until ntpd is in synchronized state. This
13       can be useful at boot time, to delay the boot sequence until after
14       "ntpd -g" has set the time.
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16       ntpwait will send at most number queries to ntpd(8), sleeping for secs
17       seconds after each status return that says ntpd(8) has not yet produced
18       a synchronized and stable system clock.
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20       ntpwait will do this quietly, unless the -v flag is provided.
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OPTIONS

23       -n number, --tries=number
24           Number of times to check ntpd. This option takes an integer number
25           as its argument. The default number for this option is: 100.
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27           The maximum number of times we will check ntpd to see if it has
28           been able to synchronize and stabilize the system clock.
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30       -s secs-between-tries, --sleep=secs-between-tries
31           How long to sleep between tries. This option takes an integer
32           number as its argument. The default secs-between-tries for this
33           option is: 6.
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35           We will sleep for secs-between-tries after each query of ntpd that
36           returns "the time is not yet stable".
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38       -v, --verbose
39           Be verbose.
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41           By default, ntpwait is silent. With this option, ntpwait will
42           provide status information, including time to synchronization in
43           seconds.
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45       -V, --version
46           Print the version string and exit.
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BUGS

49       If you are running Python at a version older than 3.3, the report on
50       time to synchronization may be thrown off by NTP clock stepping.
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EXIT STATUS

53       One of the following exit values will be returned:
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55       0
56           Successful program execution.
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58       1
59           The operation failed or the command syntax was not valid.
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61       2
62           Operation was interrupted by signal.
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66NTPsec                            2023-08-03                        NTPWAIT(8)
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