Parámetros de comando de escape pasados ​​a xp_cmdshell a dtexec

En pocas palabras, ponga CMD /S /C " al principio, y " al final. En el medio puede tener tantas citas como desee.

Así es como lo haces:

declare @cmd varchar(8000)
-- Note you can use CMD builtins and output redirection etc with this technique, 
-- as we are going to pass the whole thing to CMD to execute
set @cmd = 'echo "Test" > "c:\my log directory\logfile.txt" 2> "c:\my other directory\err.log" '


declare @retVal int
declare @output table(
    ix int identity primary key,
    txt varchar(max)
)


-- Magic goes here:
set @cmd = 'CMD /S /C " ' + @cmd + ' " '

insert into @output(txt)
exec @retVal = xp_cmdshell @cmd
insert @output(txt) select '(Exit Code: ' + cast(@retVal as varchar(10))+')'

select * from @output