1NTPWAIT(8)                          NTPsec                          NTPWAIT(8)
2
3
4

NAME

6       ntpwait - wait for ntpd to stabilize the system clock
7

SYNOPSIS

9       ntpwait [-vV] [-n number] [-s secs]
10

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.
15
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.
19
20       ntpwait will do this quietly, unless the -v flag is provided.
21

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.
26
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.
29
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.
34
35           We will sleep for secs-between-tries after each query of ntpd that
36           returns "the time is not yet stable".
37
38       -v, --verbose
39           Be verbose.
40
41           By default, ntpwait is silent. With this option, ntpwait will
42           provide status information, including time to synchronization in
43           seconds.
44
45       -V, --version
46           Print the version string and exit.
47

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.
51

EXIT STATUS

53       One of the following exit values will be returned:
54
55       0
56           Successful program execution.
57
58       1
59           The operation failed or the command syntax was not valid.
60
61       2
62           Operation was interrupted by signal.
63
64
65
66NTPsec                            2021-07-22                        NTPWAIT(8)
Impressum