sed 或 awk 删除模式匹配之间的行，不包括第二个标记的行 [英] sed or awk deleting lines between pattern matches, excluding the second token's line

问题描述

我有一个 sed 命令可以成功打印匹配两种模式的行:

I have a sed command which will successfully print lines matching two patterns:

 sed -n '/PAGE 2/,/\x0c/p' filename.txt

我没有想到的是，我希望它打印从第一个标记开始的所有行，直到 第二个标记.\x0c 标记是大平面文件上的记录分隔符，我需要保持该行完整.

What I haven't figured out, is that I want it to print all the lines from the first token, up until the second token. The \x0c token is a record separator on a big flat file, and I need to keep THAT line intact.

在两个令牌之间，数据完全可变，我没有可靠的锚点可以使用.

In between the two tokens, the data is completely variable, and I do not have a reliable anchor to work with.

[澄清]现在它打印 /PAGE 2/ 和 /\x0c/ 之间的所有行.我希望它打印 /PAGE 2/ 直到记录中的下一个 /\x0c/ .

[CLARIFICATION] Right now it prints all the lines between /PAGE 2/ and /\x0c/ inclusive. I want it to print /PAGE 2/ up until the next /\x0c/ in the record.

[测试数据] /x0c 将位于此记录的第一行的开头和最后一行的开头.

[test data] The /x0c will be at the start of the first line, and the beginning of the last line of this record.

我需要删除记录的第一行，通过下一条记录开始之前的行.

I need to delete the first line of the record, through the line just before the beginning of the next record.

^L20-SEP-2006 01:54:08 PM         Foobars College                          PAGE 2
TERM: 200610               Student Billing Statement                     SUMDATA
99999

Foo bar                                                              R0000000
999 Geese Rural Drive                                           DUE: 15-OCT-2012
Columbus, NE 90210

--------------------------------------------------------------------------------
       Balance equal to or greater than $5000.00    $200.00
       Billing inquiries may be directed to 444/555-1212 or by
       email to [e-mail].  Financial Aid inquiries should
       be directed to 444/555-1212 or [e-mail].
^L20-SEP-2006 01:54:08 PM         Foobars College                          PAGE 1

[预期结果]

 ^L20-SEP-2006 01:54:08 PM         Foobars College                          PAGE 1

文件中会有多个这样的记录.我只能依赖 /PAGE 2/ 令牌和 /x0c/ 令牌.

There will be multiple such records in the file. I can rely only on the /PAGE 2/ token, and the /x0c/ token.

[解决方案]:

在 Choruba 的带领下，我将他的命令编辑为:

Following Choruba's lead, I edited his command to:

sed '/PAGE [2-9]/,/\x0c/{/\x0c$/!d}'

大括号中的规则适用于任何包含^L的行，并有选择地忽略它们.

The rule in the curly brackets was applying itself to any line containing a ^L and was selectively ignoring them.

推荐答案

在 Choruba 的带领下，我将他的命令编辑为:

Following Choruba's lead, I edited his command to:

sed '/PAGE [2-9]/,/\x0c/{/\x0c$/!d}'

这篇关于sed 或 awk 删除模式匹配之间的行，不包括第二个标记的行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！