In order to master SharePoint 2010, you will have to get comfortable utilizing PowerShell (aka SharePoint 2010 Management Shell). There are so many commands (or command-lets as they are called) that interact with SharePoint that it makes it nearly impossible to remember them all. Use this PowerShell command to output a list of all cmdlets that are found within the SharePoint 2010 namespace:
Get-Command –PSSnapin “Microsoft.SharePoint.PowerShell” | format-table name > C:\SP2010_PowerShell_Commands.txt
If you would like a little more detail, then try this one:
Get-Command –PSSnapin “Microsoft.SharePoint.PowerShell” | select name, definition | format-list > C:\SP2010_PowerShell_Commands.txt
Note: You may also type gcm as the alias for Get-Command.
Ref : List All SharePoint 2010 PowerShell Commands By Adam Preston
Now, go to your desired page and put the page in edit mode. Add in the Content Editor Web Part located under the Media and Content category. Once added select the web part and use the ribbon UI to navigate to the Web Part Properties screen.