D:\>copy con: select1.sql
set showplan_text on
go
if exists (select 1 from sysobjects where xtype = 'U' and name = 'jobs') print 'exists' else print 'doesn''t exist'
^Z
        1 file(s) copied.

D:\>copy con: selectstar.sql
set showplan_text on
go
if exists (select * from sysobjects where xtype = 'U' and name = 'jobs') print 'exists' else print 'doesn''t exist'
^Z
        1 file(s) copied.

D:\>osql -dpubs -n -i selectstar.sql > selectstar.txt

D:\>osql -dpubs -n -i select1.sql > select1.txt

D:\>diff select1.txt selectstar.txt
3c3
<  if exists (select 1 from sysobjects where xtype = 'U' and name = 'jobs')
---
>  if exists (select * from sysobjects where xtype = 'U' and name = 'jobs')