360安全卫士怎么设置火狐为默认浏
759 2023-04-03 06:41:01
1. (含字符‘22’)在当前行上面插入文本 koko = "gggggggggggggg"sed -i '/22/i\koko = "gggggggggggggg"' /root/soft/iptables2. (含字符‘22’)在当前行下面插入文本 koko = "gggggggggggggg"sed -i '/22/a\koko = "gggggggggggggg"' /root/soft/iptables3. (含字符‘22’)用新的文本改变本行的文本 koko = "gggggggggggggg"sed -i '/22/c\koko = "gggggggggggggg"' /root/soft/iptables4. 在整行范围内把字符 22 替换为 kokotest,如果没有g标记,则只有每行第一个匹配的 22 被替换成 kokotestsed -i 's/22/kokotest/g' /root/soft/iptables5. 删除 /root/soft/iptables 文件的第二行sed -i '2d' /root/soft/iptables6. 删除 /root/soft/iptables 文件的第二行到末尾所有行sed -i '2,$d' /root/soft/iptables7. 删除 /root/soft/iptables 文件的最后一行sed -i '$d' /root/soft/iptables8. 删除 /root/soft/iptables 文件所有包含 22 的行sed -i '/22/'d /root/soft/iptables