List of procedures as comma seprated string

Following is the code that can be used to get  list of all procedures having name started with string 'Proc' and this returns a single string containing all procedures as comma separated names.

i.e. if there are procedures proc_1 ,proc_2,proc_3 and proc_4 exists in sql server then the returned result will look like

proc_1 ,proc_2,proc_3 , proc_4

Also  @listStr variable contains the result that can be used to process this list further according to the requirements.

DECLARE @listStr VARCHAR(MAX)
select @listStr = COALESCE(@listStr+',' , '') + [name]
FROM sysobjects WHERE type ='P' AND name LIKE 'Proc%' AND [name]  IS NOT NULL
SELECT @listStr