MFBSI has specific control statements that insert the existing symbols pool into JCL as command lines. Use the %%LISTVAR or %%LISTVARS control statements to do this.
9 //* %%LISTVAR 10 //* --------------------------------------------------------------------<LISTVAR 11 //* ODATE = [010201] <LISTVAR 12 //* OYEAR = [01] <LISTVAR 22 //* --------------------------------------------------------------------<LISTVAR