Re: Guess what it does ... and a challenge

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1x~sleep 9

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`yes|tac`

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[am]king ~$ TMPDIR=/dev/shm/ time perl -we '`yes|tac`'
tac: /dev/shm//tacck0ml6: write error: No space left on device
11.48user 2.56system 0:14.05elapsed 99%CPU (0avgtext+0avgdata 0maxresi
+dent)k
0inputs+0outputs (0major+1382minor)pagefaults 0swaps

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$x=`yes`

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1+`yes`

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-`yes`

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1x~sleep$=

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