execute shell script from python, needs sys.argv

[Lawrence D'Oliveiro]

In message <1vmbd65uaj2snq1v0vo49ktn0lsc2o5m1a at 4ax.com>, Tim Roberts wrote:

> I KNOW that we're still working on syntax here, and that it's too early
> for optimization, but it bothers me to see "cat" as the first thing in a
> pipeline.

An anti-UUOC instinct. Very good. :)