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#!/bin/sh wget http://hackage.haskell.org/package/pony >/dev/null 2>/dev/null if [ $? = 0 ]; then md5sum < pony > new-sum touch sum if [ "$(cat sum)" = "$(cat new-sum)" ]; then rm new-sum else mv new-sum sum echo 'pony' fi rm pony else echo 'pony (unfetchable)' fi