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Connect to PowerShell Scripts in Ruby

Connect to PowerShell scripts in Ruby with ruby-dbi, dbd-odbc, and ruby-odbc.

The CData ODBC Driver for PowerShell makes it easy to integrate connectivity to live PowerShell scripts in Ruby. This article shows how to create a simple Ruby app that connects to PowerShell scripts, executes a query, and displays the results.

Create an ODBC Connection to PowerShell Scripts

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

The ScriptLocation, under the Data section, must be set to a valid script location.

Installing Ruby and Necessary Gems

If you do not have Ruby installed, refer to the Ruby installation page. With Ruby installed, you will need to install the ruby-dbi, dbd-odbc, and ruby-odbc gems:

gem install dbi gem install dbd-odbc gem install ruby-odbc

Create a Ruby App with Connectivity to PowerShell Scripts

Create a new Ruby file (for example: PowerShellSelect.rb) and open it in a text editor. Copy the following code into your file:

#connect to the DSN require 'DBI' cnxn = DBI.connect('DBI:ODBC:CData PowerShell Source','','') #execute a SELECT query and store the result set resultSet = cnxn.execute("SELECT ProcessName, CPU FROM Process") #display the names of the columns resultSet.column_names.each do |name| print name, "\t" end puts #display the results while row = resultSet.fetch do (0..resultSet.column_names.size - 1).each do |n| print row[n], "\t" end puts end resultSet.finish #close the connection cnxn.disconnect if cnxn

With the file completed, you are ready to display your PowerShell scripts with Ruby. To do so, simply run your file from the command line:

ruby PowerShellSelect.rb Writing SQL-92 queries to PowerShell allows you to quickly and easily incorporate PowerShell scripts into your own Ruby applications. Download a free trial today!