Copy a file to a new location, optionally marking the file as a temporary file (to be deleted on application exit).

Note there are issues for temporary files - not all the parent directories that might be created are guaranteed to be deleted - only the immediate parent directory will be deleted on exit if created. Other higher-level directories will not be deleted, even if the file is marked as temporary.

Class method to read a binary file and copy it to a byte array.

Write a set of bytes into a so-called binary file. The point is that we use BinaryWriter here and we have a byte array as input.

Write a set of bytes into a 'so-called' binary file. The point is that we use BinaryWriter here and we have a byte array as input.

This is a quick and easy method to generate a somewhat random password. This simply generates the MD5 hash for the integer returned by the time() function and then truncates it to the specific length.

Usage:
found('asdf',@array);

P.S. In perl 5.10 can be written as
use 5.010;
'asdf'~~@array;

Digest::MD5 is core from 5.8.

Just a simple check to make sure that a person's email address matches their domain.

For example .. in a form you have 2 textboxs .. 1 for their website url, the other for their email address. This checks to see if the domains for the email address and the website url match.

Simple function to check for a valid email address. Makes sure the @ and a . are in the right place. There is most likely a perl package on CPAN that would be more extensive, but this happens to work for my uses.

A little function that returns a greeting based on the local time.