tai64n(8)                                               tai64n(8)


NAME
       tai64n - puts a precise timestamp on each line.

SYNOPSIS
       tai64n

DESCRIPTION
       tai64n reads lines from stdin. For each line, it writes

       1      an @,

       2.     a precise timestamp,

       3.     a space, and

       4.     a copy of the input line

              to  stdout. The timestamp indicates the moment that
              tai64n read the first character of the line.

              tai64n  does  not  allocate  any  memory  after  it
              starts.

TIMESTAMPS
       Timestamps  used  by  tai64n  are 12-byte TAI64N labels in
       external TAI64N format, printed as 24 lowercase  hexadeci-
       mal  characters. You can use tai64nlocal(8) to convert the
       timestamps to a human-readable format.

       For example, the timestamp 4000000037c219bf2ef02e94 refers
       to  the  nanosecond  beginning exactly 935467455.787492500
       seconds after the beginning of 1970 TAI; 37c219bf hexadec-
       imal  is 935467455, and 2ef02e94 hexadecimal is 787492500.

       The current implementation of tai64n relies  on  the  UNIX
       gettimeofday library routine to return the current time as
       the number of TAI seconds since 1970-01-01  00:00:10  TAI.
       Beware  that  most  gettimeofday  implementations  are not
       Y2038-compliant. Furthermore,  most  clocks  are  not  set
       accurately.

EXIT CODES
       tai64n  exits  0  when  it sees end of input. It exits 111
       without an error message if it has trouble  reading  stdin
       or writing stdout.

SEE ALSO
       supervise(8),  svc(8),  svok(8), svstat(8), svscanboot(8),
       svscan(8), readproctitle(8), fghack(8), pgrphack(8),  mul-
       tilog(8),   tai64nlocal(8),   setuidgid(8),  envuidgid(8),
       envdir(8), softlimit(8), setlock(8)

       http://cr.yp.to/daemontools.html




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