Posted by J.O. Aho on 10/10/07 16:42

Jerry Stuckle wrote:
> J.O. Aho wrote:
>> Jerry Stuckle wrote:
>>> Henk Oegema wrote:
>>>>> J.O. Aho wrote:
>>>> Tnx Aho for answering. :)
>>>>> Henk Oegema wrote:
>>>>>
>>>>>
>>>>> You would need to use
>>>>>
>>>>> export day=`php /path/to/yout/file/uptime.php`
>>>>>
>>>>> if you use it this way, you need to make the script to take
>>>>> arguments, so
>>>>> that
>>>>> you can get the day, hour and minute alone. Don't forget to echo
>>>>> about
>>>>> the value.
>>>> Can you please be a little bit more specific. It's not quit clear to
>>>> me.
>>>> Why (and how) must the script take arguments? The values of the 3
>>>> variables are already known to the script.
>>>> I only need to pass them to the operating system.
>>>>> Otherwise you can use a shell script with awk that can read out the
>>>>> values
>>>>> and then set each variable, but then you could skip using php, as you
>>>>> get
>>>>> the uptime from uptime command directly.
>>>> You right, this is also a possibility.
>>> But what's the operating system going to do with them?
>>> The operating system doesn't take parameters. Rather, you run a program
>>> (even if it is the shell) which does something with parameters.
>>
>> The values are already "stored" in the OS in question, it do have
>> track of
>> it's own lifespan, but of course not stored as a variable that is
>> accessible
>> by the shell.

> How are they "stored" in the OS? From what he's saying, they're in his
> program and he needs to tell the OS about them somehow.
>
The os is aware of the system clock and knows how many ticks it been running,
in that way the values are stored.

--

//Aho

[Back to original message]