On Mon, 19 Oct 2009 07:09:24 -0500, Chase, John wrote: > >Perhaps we have something misconfigured, but I've wondered why I must >append an asterisk to a "prefix" value, say, to display all the CICS >regions on the DA screen. If I enter "PRE CICS" I get a blank screen, >but if I enter "PRE CICS*" I see all the CICSes that are running. Why >isn't "CICS" treated as a "PREFIX" when I say it's a PREFIX? > >This is at z/OS 1.9 and earlier (back as far as I can remember). > I can remember back further. At one time, PREFIX was exactly that: a prefix, with no wildcard characters supported, much less required. At some point, SDSF extended the syntax to support wildcards, but chose to overload "PREFIX", rather than provide a more suitable name, such as "PATTERN". It was particularly jarring at that upgrade boundary when "PREFIX USER" ceased to display anything except for the TSO session of "USER". I needed to ask an expert to discover that the novus ordo seclorum required "PREFIX USER*". But I believe that constructs such as "PREFIX FOO*BAR*", and even counterintuitively "PREFIX *A", are now possible.
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