enrico-sorichetti,I had a look at this syntax but since I am not much conversant with REXX thaught there could be another way , that I could get from expets overhere..neway thanks for all.
DATASET(dsname | *) | DSNAME(dsname | *)
specifies the name or a list of names of the data sets that are to be allocated. If a list of data set names is entered, ALLOCATE allocates and concatenates non-VSAM data sets. The data set name must include the descriptive (rightmost) qualifier and can contain a member name in parentheses.