This explanation is insanely helpful! That's what I love about this mailing list. THanks for the education :) Ian On 2013-01-15, at 8:40 AM, "G." <gerry77 at mail.com> wrote: On Tue, 15 Jan 2013 11:31:53 -0500, you wrote: How do you replace a symbol with a new one? IIRC, = with = and == with == $ foo == "one" $ sh sym foo FOO == "one" $ foo = "two" $ sho sym foo FOO = "two" $ foo == "three" $ sho sym foo FOO = "two" $ sho sym foo/global FOO == "three" i.e. one equal sign is for the local symbol, two equal signs are for the global symbol, and the local takes precedence over the global. To delete a symbol: DELETE /SYMBOL HTH, :) G. --- Filter service subscribers can train this email as spam or not-spam here: http://my.email-as.net/spamham/cgi-bin/learn.pl?messageid=49A249145F3211E2A…