1@node ntp-wait Invocation 2@section Invoking ntp-wait 3@pindex ntp-wait 4@cindex Wait for ntpd to stabilize the system clock 5@ignore 6# 7# EDIT THIS FILE WITH CAUTION (invoke-ntp-wait.texi) 8# 9# It has been AutoGen-ed August 14, 2018 at 08:09:07 AM by AutoGen 5.18.5 10# From the definitions ntp-wait-opts.def 11# and the template file agtexi-cmd.tpl 12@end ignore 13 14 15 16@code{ntp-wait} 17will send at most 18@kbd{num-tries} 19queries to 20@code{ntpd(8)}, 21sleeping for 22@kbd{secs-between-tries} 23after each status return that says 24@code{ntpd(8)} 25has not yet produced a synchronized and stable system clock. 26 27@code{ntp-wait} 28will do this quietly, unless the 29@code{-v} 30flag is provided. 31This can be useful at boot time, to delay the boot sequence until after 32@kbd{ntpd} @kbd{-g} 33has set the time. 34 35This section was generated by @strong{AutoGen}, 36using the @code{agtexi-cmd} template and the option descriptions for the @code{ntp-wait} program. 37 38@menu 39* ntp-wait usage:: ntp-wait help/usage (@option{--help}) 40* ntp-wait tries:: tries option (-n) 41* ntp-wait sleep:: sleep option (-s) 42* ntp-wait verbose:: verbose option (-v) 43* ntp-wait exit status:: exit status 44* ntp-wait Authors:: Authors 45* ntp-wait Notes:: Notes 46@end menu 47 48@node ntp-wait usage 49@subsection ntp-wait help/usage (@option{--help}) 50@cindex ntp-wait help 51 52This is the automatically generated usage text for ntp-wait. 53 54The text printed is the same whether selected with the @code{help} option 55(@option{--help}) or the @code{more-help} option (@option{--more-help}). @code{more-help} will print 56the usage text by passing it through a pager program. 57@code{more-help} is disabled on platforms without a working 58@code{fork(2)} function. The @code{PAGER} environment variable is 59used to select the program, defaulting to @file{more}. Both will exit 60with a status code of 0. 61 62@exampleindent 0 63@example 64ntp-wait - Wait for ntpd to stabilize the system clock - Ver. 4.2.8p12 65USAGE: ntp-wait [ -<flag> [<val>] | --<name>[@{=| @}<val>] ]... 66 67 -n, --tries=num Number of times to check ntpd 68 -s, --sleep=num How long to sleep between tries 69 -v, --verbose Be verbose 70 -?, --help Display usage information and exit 71 --more-help Pass the extended usage text through a pager 72 73Options are specified by doubled hyphens and their name or by a single 74hyphen and the flag character. 75@end example 76@exampleindent 4 77 78@node ntp-wait tries 79@subsection tries option (-n) 80@cindex ntp-wait-tries 81 82This is the ``number of times to check ntpd'' option. 83This option takes a number argument. 84 The maximum number of times we will check @code{ntpd} to see if 85 it has been able to synchronize and stabilize the system clock. 86@node ntp-wait sleep 87@subsection sleep option (-s) 88@cindex ntp-wait-sleep 89 90This is the ``how long to sleep between tries'' option. 91This option takes a number argument @file{secs-between-tries}. 92 We will sleep for @file{secs-between-tries} after each query 93 of @code{ntpd} that returns "the time is not yet stable". 94@node ntp-wait verbose 95@subsection verbose option (-v) 96@cindex ntp-wait-verbose 97 98This is the ``be verbose'' option. 99 By default, @code{ntp-wait} is silent. 100 With this option, @code{ntp-wait} will provide status information. 101@node ntp-wait exit status 102@subsection ntp-wait exit status 103 104One of the following exit values will be returned: 105@table @samp 106@item 0 (EXIT_SUCCESS) 107Successful program execution. 108@item 1 (EXIT_FAILURE) 109The operation failed or the command syntax was not valid. 110@end table 111@node ntp-wait Authors 112@subsection ntp-wait Authors 113@node ntp-wait Notes 114@subsection ntp-wait Notes 115