Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
tai64n(8)		    System Manager's Manual		     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 hexadecimal 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 be-
       ginning of 1970 TAI; 37c219bf hexadecimal 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 implemen-
       tations 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), multilog(8), tai64nlocal(8),
       setuidgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8)

								     tai64n(8)

NAME | SYNOPSIS | DESCRIPTION | TIMESTAMPS | EXIT CODES | SEE ALSO

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=tai64n&sektion=8&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help