sed命令中如何在新增加一行前加上缩进tab

sed 命令是 linux 中一个常用的文本命令，处理替换、增加文本等很方便。

对于要在某行下增加带缩进的文本 \\t 不能很好处理，输出结果并不是缩进，变成了一个字符 t。

处理方法也很简单，既然转义成了 t，我们可以先增加一个空白字符让它先转义 \ ，后面再用 \t 应该就可以了, 也就是 \ \t

如我们增加一行带缩进完整命令就是

sed -i '/ 特定字符串 /a\ \t 新行字符串' file

如我们在文本 3456 下行增加一行带 2 个缩进 TAB 的 zengjia 字符可以这样写

终端写入下列命令

sed -i '/3456/a\ \t\tzengjia' ./1

正文完

linux sed

发表至： 软件教程

2022-10-09

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