On Sat, 1 Apr 2006, Sick Twist wrote:
> I am trying to write a script that parses an unknown IP address from a page
> of HTML, compares the IP address to a file and overwrites the file if the
> saved IP address is different.
Gee, that sounds like what I had to do to embed my (dynamic) IP address in
an HTML page.
> My question is, what language should I investigate to accomplish this?
I'd use {k,ba,}sh, since that's what I know well.
> Is this able to be done with a bash script and command line utilities
Yeah, or if you can use CGI you can write your pseudo-HTML with meta tags,
and replace those tags at run time with your address. Makes the "extract
the IP address" part trivially easy, but then you have to write a CGI
script.
sed -n '/ [1-9][0-9]*\.[1-9][0-9]*\.[1-9][0-9]*\.[1-9][0-9]* /s/^.*
\([1-9][0-9]*\.[1-9][0-9]*\.[1-9][0-9]*\.[1-9][0-9]*\) .*$/\1/p' < file.html
> address
Just make sure the address is flanked by spaces in file.html .
> or is there another language like perl or python that would be better
> suited for this task? C has always been my game so I'm less familiar with
> the strengths and capabilities of some of the other tools out there.
Heck, use what you know. First-time code is usually pretty bad.
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