note moritz <blockquote>my code <c>s/(\;do.*)(\<\/iframe\>\'\)\;)/sss/;</c> matches only first 4 symbols...</blockquote> <p>The regex inside your substitution matches the whole string, not "only first 4 symbols", whatever you mean by "symbol".</p> <p>So, what do you want to do?</p> <p><b>Update</b>: The OP silently updated his node, so this reply might or might not be irrelevant now.</p> <!-- Node text goes above. Div tags should contain sig only --> <div class="pmsig"><div class="pmsig-616540"> [http://perl6.org/|Perl 6 - the future is here, just unevenly distributed] </div></div> 1002482 1002482