塞德如何更改特定图案旁边的线

本文介绍了塞德如何更改特定图案旁边的线的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我的文件是:

DIVIDER
Sometext_string

many
lines
of random
text
DIVIDER
Another_Sometext_string
many
many
lines
DIVIDER
Third_sometext_string
....

如何按照DIVIDER模式更改行

How change lines following DIVIDER pattern

结果必须为:

DIVIDER
[begin]Sometext_string[end]

many
lines
of random
text
DIVIDER
[begin]Another_Sometext_string[end]

many
many
lines
DIVIDER
[begin]Third_sometext_string[end]

....

推荐答案

可能会有所帮助-

sed '/DIVIDER/{n;s/.*/[begin]&[end]\n/;}' file1

执行:

[jaypal:~/Temp] cat file1
DIVIDER
Sometext_string

many
lines
of random
text
DIVIDER
Another_Sometext_string
many
many
lines
DIVIDER
Third_sometext_string

[jaypal:~/Temp] sed '/DIVIDER/{n;s/.*/[begin]&[end]\n/;}' file1
DIVIDER
[begin]Sometext_string[end]


many
lines
of random
text
DIVIDER
[begin]Another_Sometext_string[end]

many
many
lines
DIVIDER
[begin]Third_sometext_string[end]

更新:

此版本将在第一个DIVIDER之后处理一个空白行.

This version will handle one blank line after the first DIVIDER.

[jaypal:~/Temp] sed -e '0,/DIVIDER/{n;s/.*/[begin]&[end]/;}' -e '/DIVIDER/{n;s/.*/[begin]&[end]\n/;}' file1
DIVIDER
[begin]Sometext_string[end]

many
lines
of random
text
DIVIDER
[begin]Another_Sometext_string[end]

many
many
lines
DIVIDER
[begin]Third_sometext_string[end]

[jaypal:~/Temp]

更新2:

现在没有其他问题了，所以我想如果您愿意，我可以提供替代的 awk 解决方案?:)

There are no other questions right now so that I thought I'd offer an alternate awk solution if you'd like? :)

awk '/DIVIDER/{print;getline;sub(/.*/,"[begin]&[end]");print;next}1' file1

[jaypal:~/Temp] awk '/DIVIDER/{print;getline;sub(/.*/,"[begin]&[end]\n");print;next}1' file1
DIVIDER
[begin]Sometext_string[end]


many
lines
of random
text
DIVIDER
[begin]Another_Sometext_string[end]

many
many
lines
DIVIDER
[begin]Third_sometext_string[end]

[jaypal:~/Temp]

这用于处理DIVIDER之后的第一个空白行-

This to handle first blank line after DIVIDER -

[jaypal:~/Temp] awk '/DIVIDER/{count++;print;getline;if(count==1) sub(/.*/,"[begin]&[end]");else sub(/.*/,"[begin]&[end]\n");print;next}1' file1
DIVIDER
[begin]Sometext_string[end]

many
lines
of random
text
DIVIDER
[begin]Another_Sometext_string[end]

many
many
lines
DIVIDER
[begin]Third_sometext_string[end]

[jaypal:~/Temp]

这篇关于塞德如何更改特定图案旁边的线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！

divider