To run multiple external scripts do as follows;
Suppose you are having following scripts in a folder. c:\scripts\script1.sql, c:\scripts\script1.sql
If you add the following example to .bat file ,it runs those scripts from the command line and outputs the queries and results to a text file located at C:\Result.txt.
sqlcmd -S ERANGA-PC\SQLEXPRESS -d T1 -U sa -P Qwer1234 -i c:\scripts\script1.sql -i c:\scripts\script1.sql –o c:\scripts\Result.sql
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