摘要：1. 括号的分组标签，最多9组，依次为1...9sed -r 's/^(address)/#\1/' /etc/network/interfacessed -r s/^\(address\)/#\\1/ /etc/network/interfaces2. 用&代表匹配到的内容sed -r 's/^a... 阅读全文

摘要：AWK：在线文章http://www.grymoire.com/Unix/Awk.htmlPrint every line between lines containing thewords BEGIN and END. (No action defaults toprint).awk '/BEGI... 阅读全文