I was amazed to see how simple Perl makes it to read the lines of a file into an array.

#!/usr/bin/perl
open(I, “flavors.txt”);
@flavors = <I>;

With just two lines of code, you are ready to do some string munching. You can then run through the elements in the array with a loop similar to the following.

for($i=0; $i<@flavors.length; $i++) {
@flavors[i] =~ s/•//;
}

I would enjoy seeing some other ways to iterate through the array.

Here is an example of brute force engine searching. It does nothing more than perform a large number of searches in a very short time. Beware this is not a very nice thing to do and it is a terrible waste of network, and CPU resources. This is given as an example of the power of cURL. This script is written in PHP and uses the libcurl libraries.
[code lang="php"]
$base_url = "http://www.google.com/search";
$ch = curl_init();

for($i=0; $i<20; $i++) {
$url = $base_url . "?q=$i";
curl_setopt($ch, CURLOPT_URL, $url);
curl_exec($ch);
}

curl_close($ch);
?>
[/code]

I recently needed to replace the non-standard extended characters that ms-word uses for quotes in over 80 pages. The octal notation available in regular expressions proved to be very helpful. To use octal in a regular expression just escape the three number code like \200.
[code lang="php"]
#!/usr/bin/php -q
for($id = 1; $id<82; $id++) {
$text=mysql_result($result,0,"content");
$new_text = ereg_replace("â\200\234","\"",$text);
$text = $new_text;
$new_text = ereg_replace("â\200\235","\"",$text);
$text = $new_text;
$new_text = ereg_replace("â\200\223","-",$text);
$text = $new_text;
$new_text = ereg_replace("â\200\231","'",$text);
$text = $new_text;
$new_text = ereg_replace("â\200\230","'",$text);
$text = $new_text;
$new_text = ereg_replace("â\200","",$text);
$text = $new_text;
$new_text = ereg_replace("â","\"",$text);
$text = $new_text;
$new_text = ereg_replace("\r\n","\n",$text);
$escaped_text = mysql_escape_string($text);
}
?>
[/code]