摘要: ① grep -E "word1|word2|word3" file.txt 满足任意条件(word1、word2和word3之一)将匹配。 ② grep word1 file.txt | grep word2 |grep word3 必须同时满足三个条件(word1、word2和word3)才匹配 阅读全文
posted @ 2018-11-15 16:02 蒋励 阅读(2125) 评论(0) 推荐(0)