Mailinglist Archive: opensuse (1986 mails)

["Brian K. White" <brian@xxxxxxxxx>]

----- Original Message ----- 
From: "Brian K. White" <brian@xxxxxxxxx>
To: <opensuse@xxxxxxxxxxxx>
Sent: Thursday, November 20, 2008 10:18 PM
Subject: Re: [opensuse] Timestamping pipe [Was: Attempting (and succeeding) to 
use my UPS]



> > The one most usefull to me would be time since command start.

> #!/usr/bin/awk -f
> BEGIN { S=systime() }
> {
>         s=systime()-S
>         m=0
>         h=0
>         d=0
>         if (s>=60) { m=s/60 ; s=s%60 }
>         if (m>=60) { h=m/60 ; m=m%60 }
>         if (h>=24) { d=h/24 ; h=h%24 }
>         printf ("%04i:%02i:%02i:%02i: %s\n",d,h,m,s,$0)
> }


I tested the various rollover points like this:

First, add something to the calculated seconds "s" to bring it close to a 
rollover point, after s=systime() and before anything that uses "s":

    s=systime()-S
    # s=s+58    # add 2 seconds before 1 minute to test minute rollover
    # s=s+3598  # add 2 seconds before 1 hour to test hour rollover
    s=s+86398 # add 2 seconds before 1 day to test day rollover
    m=0
    h=0
    d=0
    if (s>=60) { m=s/60 ; s%=60 }
    if (m>=60) { h=m/60 ; m%=60 }
    if (h>=24) { d=h/24 ; h%=24 }
    printf ("%04i:%02i:%02i:%02i: %s\n",d,h,m,s,$0)


Then echo/sleep/echo...

(echo this ;sleep 1 ;echo is ;sleep 1 ;echo a ;sleep 1 ;echo test) |tscat



unadulterated:
0000:00:00:00: this
0000:00:00:01: is
0000:00:00:02: a
0000:00:00:03: test

one minute rollover:
0000:00:00:58: this
0000:00:00:59: is
0000:00:01:00: a
0000:00:01:01: test

one hour rollover:
0000:00:59:58: this
0000:00:59:59: is
0000:01:00:00: a
0000:01:00:01: test

one day rollover:
0000:23:59:58: this
0000:23:59:59: is
0001:00:00:00: a
0001:00:00:01: test


-- 
Brian K. White    brian@xxxxxxxxx    http://www.myspace.com/KEYofR
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filePro  BBx    Linux  SCO  FreeBSD    #callahans  Satriani  Filk!

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