Re: [SLE] Time synch problem

From: Carlos E. R. (robin1.listas_at_tiscali.es)
Date: 02/23/05

  • Next message: Harry Giles: "[SLE] Kernel download location" 
    Date: Wed, 23 Feb 2005 02:44:07 +0100 (CET)
To: SLE <suse-linux-e@suse.com>

    The Tuesday 2005-02-22 at 15:41 -0800, Randall R Schulz wrote:

    > > I think it is not really a loop, only a "cute" way of chaining
    > > if/then/else sentences.
    >
    > Yes, you're right, of course. Too cute by half, I'd say, but I suppose
    > that's just because it fooled me.

    Mee to. I had to stop and look at it carefully, after you mentioned it.

    > > Let me see... the "set" line I don't understand, but the runlevel
    > > comand "prints the previous and current system runlevel on its
    > > standard output, separated by a single space. If there is no previous
    > > system runlevel, the letter N will be printed instead". Ah, it sets
    > > the first parameter to "N" and the second ${2} to "5" in my system.
    >
    > Set does dual duty. It can change shell options and it can set the
    > positional parameters. It's the latter use being made in this case. The
    > previous and current run levels become $1 and $2, as you note.

    Yes, it is a nice trick to separate words, easier and better than the
    program "cut" for that purpose, imo. I think you can redefine the word
    separator with an environment parameter change: there is at least one of
    the suse init scripts that uses that trick, if my memory serves.

    But the double dash still confuses me...

    > > > Pause for NUMBER seconds. SUFFIX may be 's' for seconds
    > > > (the default), 'm' for minutes, 'h' for hours or 'd' for
    > > > days. Unlike most implementations that require NUMBER be
    > > > an integer, here NUMBER may be an arbitrary floating point
    > > > number.
    > > >
    > > >
    > > >
    > > > Note in particular the last sentence.
    > >
    > > Yes, I use it fairly often. I didn't remember about the floating
    > > point, though. Funny, and interesting :-)
    >
    > I'm not laughing. But I've found it to be handy.

    I find funny those little differences beetween linux and "unixes". They
    are nice, but when we get back to another machine, it makes dificulties
    for us. 

    -- 
Cheers,
       Carlos Robinson
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