Ловкость рук и никакого мошенства

$ echo Gur dhvpx oebja sbk whzcf bire n ynml qbt. | cat magic - | zcat 2> /dev/null
The quick brown fox jumps over a lazy dog.

$ echo 'N zntvp svyr gheaf tmvc vagb n EBG13 gbby!' | cat magic - | zcat 2> /dev/null
A magic file turns gzip into a ROT13 tool!

$ ls -l magic
-rw-r--r-- 1 user group 270 Apr  9 15:41 magic

Догадайтесь как и покажите детям/коллегам.



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