Command invocation

ATTRIB MYLIST BLKSIZE(800)     +
       LRECL(80) RECFM(F B)    +
       DSORG(PS)
ALLOC DDNAME(MYDD) NEW         +
       SPACE(1,1) TRACKS KEEP  +
       USING(MYLIST)
ISPEXEC LMINIT DATAID(DDVAR) DDNAME(MYDD)