打印匹配 awk 脚本的文件名

Question

继我之前的question

我有多个文本文件，它们可能有也可能没有由虚线包围的重复文本组。输出中不应包含所有 lorem ipsum 文本。

$ cat /tmp/testAwk/file1.txt


--------------
important text one
important text two
--------------

Lorem ipsum dolor sit amet
consectetur adipiscing elit

--------------
important text three
important text four
--------------

sed do eiusmod tempor incididunt
ut labore et dolore magna aliqua

Ut enim ad minim veniam
quis nostrud exercitation ullamco laboris nisi ut aliquip
ex ea commodo consequat


$ cat /tmp/testAwk/file2.txt
Duis aute irure dolor in reprehenderit

--------------
important text one
important text two
--------------

in voluptate velit esse cillum dolore
eu fugiat nulla pariatur

non proident, sunt

--------------
important text three
important text four
--------------

Excepteur sint occaecat cupidatat

$ cat /tmp/testAwk/file3.txt
consequuntur magni dolores
sed quia non numquam

Quis autem vel eum iure reprehenderit

我正在尝试使用awk 来捕获-------------- 两行之间的文本并打印出与该模式匹配的文件的名称。

我收到了@Ed Morton 对我之前的问题的精彩回复：https://stackoverflow.com/a/55507707/257233

awk '{x=sub(/^-+$/,"")} f; x{f=!f}' *.txt

我尝试调整它以打印出与模式匹配的文件的文件名并缩进结果。我无法弄清楚如何在awk 中完成整个工作，所以我最终也在那里找到了一些grep 和sed。

$ awk 'FNR==1{print FILENAME} {x=sub(/^-+$/,"---")} f; x{f=!f}' $(grep -E '^-+$' /tmp/testAwk/*.txt -l) | sed -re 's/^([^\/])/   \1/'
/tmp/testAwk/file1.txt
   important text one
   important text two
   ---
   important text three
   important text four
   ---
/tmp/testAwk/file2.txt
   important text one
   important text two
   ---
   important text three
   important text four
   ---

我可以只用 awk 做上述事情吗？

Answer 1

这是我的做法，特别是因为您的用例似乎正在演变为需要更多功能，因此将其塞进一个简短的单行中并不是最好的方法：

$ cat tst.awk
FNR==1 { delimCnt=inBlock=block="" }
/^-+$/ {
    inBlock = (++delimCnt % 2)
    if ( !inBlock ) {
        if (delimCnt > 1) {
            if (delimCnt == 2) {
                print FILENAME
            }
            print block "   ---"
        }
        block = ""
    }
    next
}
inBlock { block = block "   " $0 ORS }

.

$ awk -f tst.awk file1.txt file2.txt file3.txt
file1.txt
   important text one
   important text two
   ---
   important text three
   important text four
   ---
file2.txt
   important text one
   important text two
   ---
   important text three
   important text four
   ---