What do you mean by “Cond=even” and “Cond=only”?

1.	What do you mean by “Cond=even” and “Cond=only”?
Answer» CODE-EVEN: By CODING COND=EVEN, the CURRENT job STEP is EXECUTED regardless of whether the previous steps have terminated abnormally. In the CASE of other RC conditions (return code conditions) being coded alongside COND=EVEN, the job step will execute if none of the RC conditions is true. CODE-ONLY: By coding COND=ONLY, the current job step will only be executed when one of the previous steps terminates abnormally. In the case of other RC conditions being coded alongside COND=ONLY, the job step will execute when none of the RC conditions is true and any previous job steps are abnormally failed.

Answer»

CODE-EVEN: By CODING COND=EVEN, the CURRENT job STEP is EXECUTED regardless of whether the previous steps have terminated abnormally. In the CASE of other RC conditions (return code conditions) being coded alongside COND=EVEN, the job step will execute if none of the RC conditions is true.

CODE-ONLY: By coding COND=ONLY, the current job step will only be executed when one of the previous steps terminates abnormally. In the case of other RC conditions being coded alongside COND=ONLY, the job step will execute when none of the RC conditions is true and any previous job steps are abnormally failed.

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What do you mean by “Cond=even” and “Cond=only”?