# ntpwait - wait for ntpd to stabilize the system clock - man(8) - [phpMan]

[_NTPWAIT_(8)](https://www.chedong.com/phpMan.php/man/NTPWAIT/8/markdown)                                     NTPsec                                     [_NTPWAIT_(8)](https://www.chedong.com/phpMan.php/man/NTPWAIT/8/markdown)

## NAME
       ntpwait - wait for ntpd to stabilize the system clock

## SYNOPSIS
       ntpwait [-vV] [-n _number_] [-s _secs_]

## DESCRIPTION
       The ntpwait program blocks until ntpd is in synchronized state. This can be useful at boot
       time, to delay the boot sequence until after "ntpd -g" has set the time.

       ntpwait will send at most _number_ queries to [ntpd(8)](https://www.chedong.com/phpMan.php/man/ntpd/8/markdown), sleeping for _secs_ seconds after each
       status return that says [ntpd(8)](https://www.chedong.com/phpMan.php/man/ntpd/8/markdown) has not yet produced a synchronized and stable system clock.

       ntpwait will do this quietly, unless the -v flag is provided.

## OPTIONS
       -n _number_, --tries=_number_
           Number of times to check ntpd. This option takes an integer number as its argument. The
           default _number_ for this option is: 100.

           The maximum number of times we will check _ntpd_ to see if it has been able to synchronize
           and stabilize the system clock.

       -s _secs-between-tries_, --sleep=_secs-between-tries_
           How long to sleep between tries. This option takes an integer number as its argument. The
           default _secs-between-tries_ for this option is: 6.

           We will sleep for _secs-between-tries_ after each query of _ntpd_ that returns "the time is
           not yet stable".

### -v, --verbose
           Be verbose.

           By default, ntpwait is silent. With this option, ntpwait will provide status information,
           including time to synchronization in seconds.

### -V, --version
           Print the version string and exit.

## EXIT STATUS
       One of the following exit values will be returned:

       0
           Successful program execution.

       1
           The operation failed or the command syntax was not valid.

       2
           Operation was interrupted by signal.

NTPsec                                       2024-04-01                                   [_NTPWAIT_(8)](https://www.chedong.com/phpMan.php/man/NTPWAIT/8/markdown)