Hi Monks

I wrote the next code:
#!/usr/bin/perl 

STAGE1:
while (1)
    {
    $l=system "pslist|grep process_name>!temp";

    if ($l=="256")
        {
        sleep(1);
        }

    else
        {
        sleep(1);
        goto STAGE2;
        }
    }

STAGE2:
while (1)
    {
    $l=system "pslist|grep process_name";
#    print "$l \n";

    if ($l=~"256")
        {
        sleep(1);
        #Code 4 execution here    
            unlink "!temp";
        goto STAGE1;
        }

    else 
        { 
        sleep(1);
        }
    }

[download]

this code runs a system command called "pslist"
(you can get it from www.sysinternals.com)
from it using "grep" I check if a certain process runs,
when it runs I wait for its end, then I execute a code.
After execution I return to waiting position.

the problem with this code is that it sometimes misses runs shorter then 1 second,
and if I reduce the sleep parameter to less then 1 second the CPU usage jumps to the sky.

if anyone have a more efficiant and less CPU consuming way
of doing it,
please Help.

Thanks Ahead,
Moked

In reply to Starting a script according to processes by moked

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