For Checkin I am running following command

scm checkin -u <Userid> -P <Password> -d C:\Pavan\CAM_Content1 Dev\scripts\ItistTestfile.easl
 

and the result is:

Workspace: (1005) "CAM_Content" <-> (1081) "Scanner Stream"
  Component: (1082) "Default Component"
    Baseline: (1083) 1 "Initial Baseline"
    Outgoing:
      Change sets:
        (1085) *--@  "sa" 19-Oct-2012 02:15 PM
          Changes:
           ----- \Dev\scripts\.project
           --a-- \Dev\scripts\ItistTestfile.easl
            --a-- \Dev\Tools\.project

Now i want to deliver the same file :

I am using following command

scm deliver -r <server> -d C:\Pavan\CAM_Content1 -s "CAM_Content" Dev\scripts\ItistTestfile.easl

    
 I am getting following error

Ambiguous selector "CAM_Content" matched multiple items:
Possible matches:
  (1098) "CAM_Content"
  (1005) "CAM_Content"
Problem running 'deliver':
Ambiguous workspace/stream "CAM_Content"

I have only one workspace named "CAM_Content" 

Thanks.

There are two workspaces on the server named "CAM_Content". You own one of them and the other is owned by someone else. Your command has to be explicit in which workspace to use.

You may use the alias or uuid to explicitly select your workspace. Keep in mind that the alias is temporary if you're trying to use this command in a script.