 Nop instruction nop; nop is a dummy instruction that has no effect. It can be useful as an explicit 'do nothing' instruction following a then or else clause. Example: select
when a=b then nop -- Do nothing
when a>b then say 'A > B'
otherwise say 'A < B'
end Note: Putting an extra semicolon instead of the nop would merely insert a null clause, which would just be ignored by NetRexx. The second when clause would then immediately follow the then, and hence would be reported as an error. nop is a true instruction, however, and is therefore a valid target for the then clause. | 
