Need to type a really long command just use a ` or "back tick" or "grave accent". You get >> and then continue typing. Note that you will need to hit enter an extra time since a blank line is required start execution.
get-help about_special_characters
https://technet.microsoft.com/en-us/library/hh847835.aspx
get-help about_Escape_Characters
https://technet.microsoft.com/en-us/library/hh847755.aspxReferences
http://technet.microsoft.com/en-us/library/dd347662.aspx
http://www.neolisk.com/techblog/powershell-specialcharactersandtokens
http://blogs.lessthandot.com/index.php/datamgmt/dbprogramming/a-cheat-sheet-for-all/