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Manual Pages  — TIMEDC


timedc – timed control program



timedc [command [argument ...]]


The timedc utility is used to control the operation of the timed(8) program. It may be used to:

Without any arguments, timedc will prompt for commands from the standard input. If arguments are supplied, timedc interprets the first argument as a command and the remaining arguments as parameters to the command. The standard input may be redirected causing timedc to read commands from a file. Commands may be abbreviated; recognized commands are:

? [command ...]

help [command ...]
  Print a short description of each command specified in the argument list, or, if no arguments are given, a list of the recognized commands.

clockdiff host ...
  Compute the differences between the clock of the host machine and the clocks of the machines given as arguments.

msite [host ...]
  Show the master time server for specified host(s).

trace { on| off } Enable or disable the tracing of incoming messages to timed(8) in the file /var/log/timed.log.

election host1 [host2 ...]
  Asks the daemon on the target host to reset its "election" timers and to ensure that a time master has been elected.

quit Exit from timedc.

Other commands may be included for use in testing and debugging timed(8); the help command and the program source may be consulted for details.


/var/log/timed.log tracing file for timed
  log file for master timed


?Ambiguous command abbreviation matches more than one command
?Invalid command no match found
?Privileged command command can be executed by root only


date(1), adjtime(2), icmp(4), timed(8)

R. Gusella, S. Zatti, TSP: The Time Synchronization Protocol for UNIX 4.3BSD,


The timedc utility appeared in BSD 4.3 .

TIMEDC (8) June 6, 1993

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C isn't that hard: void (*(*f[])())() defines f as an array of unspecified size, of pointers to functions that return pointers to functions that return void