From: Paul Mena <lists@...>
Date: 2012-12-15T04:35:35+09:00
Subject: Re: Invoking bash from Ruby

Thanks for the quick reply!  I've substituted $1 with ARGV[0], as I
believe that's proper Ruby syntax for a command argument, but I'm still
having trouble getting the grep command to treat the argument as a file
name.

Here's the entirety of my code:

#!/usr/bin/env ruby

fn = ARGV[0]
puts fn
date = %x{grep "<strong>Date:</strong>" fn | cut -d' ' -f3-5}
puts date

And here's the result when I run it on the command line:

pablo@pmenaws1=> ./extract_date_written.rb myfile.html
myfile.html
grep: fn: No such file or directory

I'm hoping this is a newbie mistake that is easily remedied.  Thanks
again in advance.

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