Problem while ruuning the routine

[hhh]

While running routine with two input arguments,
i am getting runtime message
TEST #1
*******

Arg1 = sequential_file_123
Arg2 = /auto/abc.txt

Test completed.


Result = Program "TSTMatchFieldTest.B": Line 4, Variable "ANS" previously undefined. Empty string used.

**********
$INCLUDE DSINCLUDE JOBCONTROL.H
InfoMessage = Arg1
PathName = Arg2
Output =''
OpenSeq PathName To FileVar Else
CREATE FileVar ELSE ABORT
WriteSeq InfoMessage TO FileVar ELSE STOP
Cmd = 'grep ':'file':' ':FileVar
Call DSExecute('UNIX',Cmd,Output,SystemReturnCode)

CloseSeq FileVar
Ans = Output
End
**********

please suggest your ideas on same.

Thanks & Regards,
Hiten

[ray.wurlod]

There is a path through your logic where the Ans variable is not assigned a value. In your code, Ans is only assigned a value if the Else clause of the OpenSeq statement is executed. Make sure you always assign a value to Ans.