[~]#echo "Hello world.\nHello sea" Hello world.\nHello sea [~]#echo -e "Hello world.\nHello sea" Hello world. Hello sea [~]#
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https://blog.csdn.net/u013425438/article/details/80389176
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[~]#echo "Hello world.\nHello sea" Hello world.\nHello sea [~]#echo -e "Hello world.\nHello sea" Hello world. Hello sea [~]#
参考：
https://blog.csdn.net/u013425438/article/details/80389176
相关文章：