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tai64n(8)                            System Manager's Manual                            tai64n(8)

       tai64n - puts a precise timestamp on each line.


       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 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 beginning 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 implementations are not Y2038-compliant. Furthermore,  most  clocks
       are not set accurately.

       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.

       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)



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