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#!/usr/bin/env zsh
SHUF=$(which shuf)
if [[ $? -ne 0 ]]; then
SHUF=$(which gshuf)
if [[ $? -ne 0 ]]; then
echo "no `shuf` found, exiting"
exit
fi
fi
get_random() { seed="$1"; openssl enc -aes-256-ctr -pass pass:"$seed" -nosalt < /dev/zero 2>/dev/null; }
echo "shuffling ..."
$SHUF --random-source=<(get_random 42) $1 > $1.shuf
$SHUF --random-source=<(get_random 42) $2 > $2.shuf
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