1. If you wanted to do it every minute, you could use cron, but it won't go
any finer than a minute.

2. Assuming the actual copying takes less than 20 seconds, you could use a
short perl (on your language of preference) program that copies the file,
then sleeps for the rest of the 20 seconds. It would look something like
this (WARNING - following code is untested - it's just a starting point to
give you the idea):

#!/usr/bin/perl

# endless loop
while (1) 
        {
        $starttime = time()     ;
        system ("cp oldfilename newfilename")   ;
        $nowtime = time ()              ;
        $sleeptime = $nowtime = $starttime      ;
        sleep ($sleeptime)      ;
        }       ;

# EOP

At 03:18 PM 12/21/99 +0200, TAG wrote:
>Hi All
>
>I would like to know if anyone can help with the following question:
>
>Is there a way of copying a file from one location to another every 20
>seconds??  - without doing it manually :)

------------------------------------"Never tell me the odds!"---
Ray Olszewski                                        -- Han Solo
Palo Alto, CA                                    [EMAIL PROTECTED]        
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