Is there a similar utility to grep
available from the Windows Command Prompt, or is there a third party tool for it?
I also found one more way of utilizing GREP like functionality in Windows 7 and above without any extra application to install and on older systems you can use install Powershell.
In Powershell, User can use Where-Object it has quite comprehensive set of feature that provides all the functionality of GREP plus more.
Hope It helps.