linux中sed用法(linux sed -n命令)

1.(content Character " 22 " einfgen von Textber der aktuellen ZeileKoko=' ggggggggggggggggggggggggg ' sed-I '/22/I \ Koko=' gggggggggggggggggggggggg '/root/soft/iptables 2 .(content Character " 22 " einfgen von Text under aktuellen ZeileKoko=' ggggggggggggggggggggggg ' sed-I '/22/a \ Koko=' gggggggggggggggggggggggggg '/root/soft/iptables 3 .(Contient Character " 22 "请使用一个新的Text Koko=' ggggggggggggggggggggggg ' sed-I '/22/c \ Koko=' gggggggggggggggggggggggg '/root/soft/iptables 4 .22世纪的新闻替换为kokotest，