如何忽略diff命令有哪些区别？ [英] How to ignore some differences in diff command?

问题描述

差异具有忽略插入删除匹配给定的行带来的改变的一个选项 -I正则表达式，正则表达式。我需要这样一个模拟的情况下，当变化是两条线（而不是插入或删除线）。

diff has an option -I regexp, which ignores changes that just insert or delete lines that match the given regexp. I need an analogue of this for the case, when changes are between two lines (rather then insert or delete lines).

例如，我想忽略像abXd和abYd，对于给定的所有区别 X 和是。

For instance, I want to ignore all differences like between "abXd" and "abYd", for given X and Y.

这似乎差异还没有这样的一种能力。是否有任何合适的替代差异？

It seems diff has not such kind of ability. Is there any suitable alternative for diff?

推荐答案

您可以过滤通过 SED 这两个文件，​​以消除你不关心的线条。一般的模式是 / regex1的/，/ regex2 / D 删除匹配两段正则表达式行之间的任何东西。例如：

You could filter the two files through sed to eliminate the lines you don't care about. The general pattern is /regex1/,/regex2/ d to delete anything between lines matching two regexes. For example:

diff <(sed '/abXd/,/abYd/d' file1) <(sed '/abXd/,/abYd/d' file2)

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