Re: will be happy to read the explanation

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Re^2: will be happy to read the explanation by dynamo (Chaplain) on Nov 20, 2007 at 01:26 UTC
Thanks, excellent reference-- but how does it get from a state where: $_ = '=]=>%-{<-\|}<&\|`{' [download] to `$_ = 'system"rm -rf/"'` [download] using only the following statement: y; -/:-@[-`{-};`-{/" -;; [download] Doesn't tr/// require the destination characters to be included in the mapping? I don't see any alphanumerics in there at all.	[reply] [d/l] [select]
Re^3: will be happy to read the explanation by Danikar (Novice) on Nov 20, 2007 at 16:40 UTC
I am quite confused on how y; -/:-@[-`{-};`-{/" -;; works as well.	[reply]
Re^4: will be happy to read the explanation by Anonymous Monk on Nov 21, 2007 at 07:36 UTC
Ah I figured it out. Read up on tr/// and ull get it Think about this $_ = "abc"; y/a-c/x-z/; print $_; # Prints xyz It goes off an ascii table. ` is right before a and { is right after z.	[reply]
Re^4: will be happy to read the explanation by Danikar (Novice) on Nov 22, 2007 at 08:48 UTC
Ah it all makes sense now. y; -/:-@[-`{-};`-{/" -;; That translates characters. So (space) thru / : thru @ [ thru ` { thru } Take that set of characters and switch it out with the corresponding character in this list ` thru { (Includs a-z) / " - Pretty nifty.	[reply]
Re^2: will be happy to read the explanation by shirokoff (Initiate) on Nov 08, 2007 at 21:35 UTC
hey.. thanks a lot... you just saved a huge period of my time!	[reply]