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代码格式：oldstring被替换的字符串

sed -i "s/oldstring/newstring/g" `grep? oldstring? -rl path`;

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sed -i "s/192.168.0.2/192.168.0.3" `grep 192.168.0.2 -rl /home/project`;

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将/home/project下面的所有含有192.168.0.2 的字符串替换成 192.168.0.3