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sed命令描述中似乎有错误。 #503

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@bycszzz

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@bycszzz

组合多个表达式

利用管道是依次对sed进行操作,sed中写多个表达式是独立执行的

sed '表达式' | sed '表达式'

等价于:

sed '表达式; 表达式'

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