砍掉mqueue中是垃圾信回寄的queue

用bash把df*的前100行內有SPAM的檔案抓出來：
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if [ -f z1.txt ]
then
rm z1.txt
fi
for i in `ls df*`
do head -100 $i | grep SPAM && echo $i |cut -c4-16|sort|uniq >> z1.txt
done
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砍掉這些檔：
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for i in `cat z1.txt`
do rm `ls ???$i`
done
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抓出有什麼字串的queue檔名：
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grep "$1" q* Q* |cut -c4-16|sort|uniq > z1.txt
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