A simple algorithm to convert decimal numbers to binary; pointless since most languages have an inbuilt function but was used for learning about algorithm design.

The decrypter for the simple encrypter I posted earlier - Takes the encrypted text from a text file - "encrypt.txt" which the encrypter automatically writes to.

A quick implementation of an encrypter which can't be cracked by frequency analysis.

I'm in the process of writing test fixtures for our rails site. A lot of my tests require authentication, so I've had to port our permissions system into a fixture. Rather than type out all of the information for the fixture, I decided to create a nested loop that will take care of this for me.

There's probably a rake task for this, but I wasn't able to find it, so I came up with my own solution. You'll have to do a little cleanup when it's done, however some slight mods to this loop could even eliminate that.

IP2Location is a Ruby library that enables the user to find the country, region, city, coordinates, zip code, ISP and domain name that any IP address or hostname originates from. It has been optimized for speed and memory utilization. Developers can use the API to query all IP2Location™ binary databases for applications written in C or supporting static/dynamic library.

I've found it kind of complicated to strip newline chars from a file with just the commandline. This tiny piece of code does just that.

I've found it especially useful when extracting tabulated data from a grabbed site where each cell is on a different html line. This way I can pre-filter the html, remove the newlines, and insert them again at register boundaries (row end in this case), so that with just a couple more replacement from within a regex enabled text editor I can copy&paste it directly to a database.

This snippet illustrates using Genetic Algorithm for the hardware optimization.

Genetic Algorithm implementation.

See also "Weighted random selection" for RandomItemSelector class source.

Weighted random selection from the list.

Don't forget to call itemsChanged after updating list content.

This snippet illustrates following:

1. Using http request to get the data
2. Parsing RSS feeds
3. Sending email

This code illustrates using ruby REXML package. It converts J2EE web application deployment descriptor web.xml into Freemind mindmap document.

This class intended to collect TODO comments from java/c++/etc source files.

Example:

protected readFileData (String path) throws IOException {
// TODO: add try...catch block for IOException
InputStream is = new FileInputStream(path);
...
}


See also DirectoryScanner class.

Customizable recursive directory scanner.

This class uses reflection to locate option setters. Client class must contains methods setFile (to receive file names from the command line) and setOption### (to receive option ###).

(See also adapter-based implementation)

Extendable command line processor for console applications.

When doing a lot of testing in script/console, you often have to reload to pickup changes in DB schema, models and libs. The process of quitting the console and restarting it can become incredibly tedious amidst bugtracking.

note: I don't believe this reloads items in the libs dir

From time to time you may have reasons to override the default find method that ActiveRecord provides. In this example, we'll store a side-copy of the record attributes so that we have some basis for discovering changes to the data.

note: this will not override dynamic finders such as find_by_id

Well, ruby is actually so flexible that there is no real need to implement the goode olde signals & slots metaphor. But it serves nicely as demonstration of ruby properties, so here we go.

By default, migrations will run on the development environment. Here's how you would specify another environment.

start remote admin connection from command line

Automated offline backup for Exchange server.
Requires ROBOCOPY from NTRK or other copy utility.
Requires manual adjustments

KillProc will do a search of all the current processes and kill all that
match the name given. If the process name is misspelled, KillProc would
kill itself, based on the match. The 'find /v /i "KillProc"' part of the
search prevents KillProc from killing the CMD window it is running in.

Requires NT Resourcekit

Deletes all files and folders from a directory, including read-only and
hidden files and folders. DelAll starts in the directory you tell it,
removes all read-only and hidden attributes from all the files, removes
all of the subfolders and then all files therein. When DelAll is done,
you will be left in the directory from which you called DelAll. The
directory that you want cleaned will not be deleted.

Builds a batch file to create hidden shares for a bunch of sub-directories (eg, User shares)

Change wins settings for all nics

Archief event log enteries

Add users and groups to all machines in a domai

Directory Utility for Ruby

Command Line Calculato