How to Find and Replace Text in All Stored Procedures

I need to restore the backup of production DB into the test server. The production linked server name should be replaced with the test linked server but it is difficult to find the procedures with specific linked server name. Below is the helpful script which I used.

-- set "Result to Text" mode by pressing Ctrl+T

SET NOCOUNT ON

DECLARE @sqlToRun VARCHAR(1000), @searchFor VARCHAR(100), @replaceWith VARCHAR(100)

-- text to search for
SET @searchFor = '[MY-SERVER]'
-- text to replace with
SET @replaceWith = '[MY-SERVER2]'

-- this will hold stored procedures text
DECLARE @temp TABLE (spText VARCHAR(MAX))

DECLARE curHelp CURSOR FAST_FORWARD
FOR
-- get text of all stored procedures that contain search string
-- I am using custom escape character here since i need to espape [ and ] in search string
SELECT DISTINCT 'sp_helptext '''+OBJECT_SCHEMA_NAME(id)+'.'+OBJECT_NAME(id)+''' '
FROM syscomments WHERE TEXT LIKE '%' + REPLACE(REPLACE(@searchFor,']','\]'),'[','\[') + '%' ESCAPE '\'
ORDER BY 'sp_helptext '''+OBJECT_SCHEMA_NAME(id)+'.'+OBJECT_NAME(id)+''' '

OPEN curHelp

FETCH next FROM curHelp INTO @sqlToRun

WHILE @@FETCH_STATUS = 0
BEGIN
--insert stored procedure text into a temporary table
INSERT INTO @temp
EXEC (@sqlToRun)

-- add GO after each stored procedure
INSERT INTO @temp
VALUES ('GO')

FETCH next FROM curHelp INTO @sqlToRun
END

CLOSE curHelp
DEALLOCATE curHelp

-- find and replace search string in stored procedures
-- also replace CREATE PROCEDURE with ALTER PROCEDURE
UPDATE @temp
SET spText = REPLACE(REPLACE(spText,'CREATE PROCEDURE', 'ALTER PROCEDURE'),@searchFor,@replaceWith)

SELECT spText FROM @temp
-- now copy and paste result into new window
-- then make sure everything looks good and run
GO

I have tested this in my environment and found it working fine.