我有一个文本文件，我想在其中操作文本。该文件的示例部分如下。我想读取第一个非缩进行，并将该文本插入到下面所有缩进行的开头。但是，正如您从示例部分中看到的那样（文件有 12k 行长，每个部分的长度各不相同），最终缩进的行停止，有一个空行，然后是一个我想要的新的非缩进字符串插入到下一组缩进行的开头。当前，文本之间的缩进和空白都是制表符，但是可以轻松地在整个文档中用“|”之类的内容替换。
所以......修改前的文件示例：
SOME_LINE_OF_TEXT
Interface Status Protocol Description
Vl1 up up
Gi0/1 admin down down
Gi0/2 admin down down
Gi0/3 admin down down
Gi0/4 admin down down
Gi0/5 admin down down
Gi0/6 admin down down
Gi0/7 admin down down
Gi0/8 admin down down
Gi0/9 admin down down
Gi0/10 admin down down
Gi0/11 admin down down
Gi0/12 admin down down
Gi0/13 admin down down
Gi0/14 admin down down
Gi0/15 admin down down
Gi0/16 admin down down
Gi0/17 admin down down
Gi0/18 admin down down
Gi0/19 admin down down
Gi0/20 admin down down
Gi0/21 admin down down
Gi0/22 admin down down
Gi0/23 admin down down
Gi0/24 admin down down
Gi0/25 admin down down
Gi0/26 admin down down
Gi0/27 admin down down
Gi0/28 up up Node Name
SOME_OTHER_DIFFERENT_LINE_OF_TEXT
Interface Status Protocol Description
Vl1 up up
Gi0/1 down down Noce Name
Gi0/2 admin down down
Gi0/3 admin down down
Gi0/4 admin down down
Gi0/5 admin down down
Gi0/6 admin down down
Gi0/7 admin down down
Gi0/8 admin down down
Gi0/9 admin down down
Gi0/10 admin down down
Gi0/11 admin down down
Gi0/12 admin down down
Gi0/13 admin down down
Gi0/14 admin down down
Gi0/15 admin down down
Gi0/16 admin down down
Gi0/17 admin down down
Gi0/18 admin down down
Gi0/19 admin down down
Gi0/20 admin down down
Gi0/21 admin down down
Gi0/22 admin down down
Gi0/23 up up Node Name
Gi0/24 up up Node Name
Gi0/25 admin down down
Gi0/26 admin down down
Gi0/27 admin down down
Gi0/28 up up Node Name
期望的最终结果：
SOME_LINE_OF_TEXT
SOME_LINE_OF_TEXT Interface Status Protocol Description
SOME_LINE_OF_TEXT Vl1 up up
SOME_LINE_OF_TEXT Gi0/1 admin down down
SOME_LINE_OF_TEXT Gi0/2 admin down down
SOME_LINE_OF_TEXT Gi0/3 admin down down
SOME_LINE_OF_TEXT Gi0/4 admin down down
SOME_LINE_OF_TEXT Gi0/5 admin down down
SOME_LINE_OF_TEXT Gi0/6 admin down down
SOME_LINE_OF_TEXT Gi0/7 admin down down
SOME_LINE_OF_TEXT Gi0/8 admin down down
SOME_LINE_OF_TEXT Gi0/9 admin down down
SOME_LINE_OF_TEXT Gi0/10 admin down down
SOME_LINE_OF_TEXT Gi0/11 admin down down
SOME_LINE_OF_TEXT Gi0/12 admin down down
SOME_LINE_OF_TEXT Gi0/13 admin down down
SOME_LINE_OF_TEXT Gi0/14 admin down down
SOME_LINE_OF_TEXT Gi0/15 admin down down
SOME_LINE_OF_TEXT Gi0/16 admin down down
SOME_LINE_OF_TEXT Gi0/17 admin down down
SOME_LINE_OF_TEXT Gi0/18 admin down down
SOME_LINE_OF_TEXT Gi0/19 admin down down
SOME_LINE_OF_TEXT Gi0/20 admin down down
SOME_LINE_OF_TEXT Gi0/21 admin down down
SOME_LINE_OF_TEXT Gi0/22 admin down down
SOME_LINE_OF_TEXT Gi0/23 admin down down
SOME_LINE_OF_TEXT Gi0/24 admin down down
SOME_LINE_OF_TEXT Gi0/25 admin down down
SOME_LINE_OF_TEXT Gi0/26 admin down down
SOME_LINE_OF_TEXT Gi0/27 admin down down
SOME_LINE_OF_TEXT Gi0/28 up up Node Name
SOME_OTHER_DIFFERENT_LINE_OF_TEXT
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Interface Status Protocol Description
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Vl1 up up
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/1 down down Noce Name
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/2 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/3 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/4 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/5 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/6 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/7 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/8 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/9 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/10 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/11 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/12 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/13 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/14 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/15 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/16 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/17 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/18 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/19 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/20 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/21 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/22 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/23 up up Node Name
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/24 up up Node Name
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/25 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/26 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/27 admin down down
SOME_OTHER_DIFFERENT_LINE_OF_TEXT Gi0/28 up up Node Name
我目前正在手动查找并替换 Notepad++，但是，由于有 12k 行，这将花费比我愿意花费的时间更多的时间。
答案1
可能的解决方案：
awk '{ if (/^[A-Z]/) { p=$0; print } else if (/^$/) { print "" } else { print p$0 } }' /path/to/file
如果一行以非空白值开头，则保存并打印它，否则在该行前面添加最后存储的值。