I have a shoprocline.ps1 script that query for same process and a bunch of them. I wanted to know how many process is by having counting the line output in powershell command shell how do I do this?

Without forcing it powershell never outputs text.  Therefor your not doing a line count.  Instead you just ask pipeline a question. like..

Show me all process with more then one running instance?

gwmi win32_process | group-object name | ? { $_.count -gt 1}

Instead of me worrying about how to parse the data.  I used the group-Object cmdlet to group process by name.  The output of that cmdlet contains a count property.

If you knew exactly what process you where tageting you could also do this.

(gwmi win32_process -filter 'name="svchost.exe"').count

In that case the gwmi command is executed first with in the ().  Since the -filter removed all but the process in question, you can use .count to count how many object were returned.  Hope that helped...

-Glenn