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yanhua365/read-head-line-of-big-file.sh

Created October 11, 2014 02:15
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读取大文件的前几行的命令
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read-head-line-of-big-file.sh
#这样的速度快
sed -n '10,20p' test.txt
#用cat配合head或tail也可以，但大文件会内存溢出
cat test.txt|head -n 30
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