apache rewrite rule format

[hostaddonltd]

Hello all,

I have dynamic pages that look like this.

/index.php?purl=text_variable_with_underscore_2355. html

What would be the rewrite rule to get them to look like this.

/text_variable_with_underscore_2355.html

Their is no other page besides index.php for this site.

Thanks

[saravanan28]

The mod_rewrite module uses a rule-based rewriting engine, based on a PCRE regular-expression parser, to rewrite requested URLs on the fly. ... The path generated by a rewrite rule can include a query string, or can lead to internal sub-processing, external request redirection, or internal proxy throughput.