note thmsdrew <p>If you're executing this command within Perl--which I assume you are, and already have that working--then two for loops would suffice.</p> <p>One of them counting up.</p> <code>for (1..$x) { system("data_pump data -band $_"); }</code> <p>The other counting down.</p> <code>for (reverse 1..$x) { system("data_pump data -band $_"); }</code> <p>Also, if the bandwidth isn't increasing by 1 each time, which my code assumes, use a <code>$count</code> variable and increment it each time in the for loop to get the desired bandwidth intervals.</p> 1004003 1004003