Re^2: A little golfing challenge: replace digits by random letters (updated) -- oneliner

or.. (shorter than Eily's one ;)

perl -pe 's|\d|(a..z)[$&-time%7]|eg' input.txt

That's nearly always correct (if you ignore the fact that it's a shift, not a shuffle). You'll get different values if the lines are not treated in the same second. This would happen if the first line is handled at 9:59:59.9999 and the second at 10:00:00.0000 (add the proper number of digits). Or if you are working on a piped input from a slow program, or the input is big enough. This can be demonstrated by adding a sleep.

I realized I could shorten the other version (I don't feel like calling it mine when I just took your idea and rewrote it :P), but it's still longer than your latest proposition:

perl -pe '@h{a..z}=1;s/\d/(%h)[$&*2]/eg' input.txt
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Because since this is golfing, why would you bother doing things properly/efficiently? :P

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Re^3: A little golfing challenge: replace digits by random letters (updated) -- oneliner by haukex (Archbishop) on Feb 11, 2019 at 14:26 UTC
You'll get different values if the lines are not treated in the same second. I had already `/msg`'d Discipulus about this - the time can be replaced by $^T `:-)`	[reply] [d/l] [select]