区分两个文件之间的文本块的最佳方法是什么？

Question

我可以使用什么 diff 标志或其他工具来比较两个文件的文本块差异。例如：

文件 1

record {
data1
data2
}

文件 2

record {
data1
data2
}

record {
data3
data4
}

输出会像

record {
data3
data4
}

Answer 1

您可以使用 diff 命令作为

diff -a --suppress-common-lines file2 file1

（或）将grep用作

grep -Fxvf file1 file2

带有以下标志，

-F, --fixed-strings
              Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched.    
-x, --line-regexp
              Select only those matches that exactly match the whole line.
-v, --invert-match
              Invert the sense of matching, to select non-matching lines.
-f FILE, --file=FILE
              Obtain patterns from FILE, one per line.  The empty file contains zero patterns, and therefore matches nothing.

使用awk

的另一种方式

awk 'NR == FNR {unique[[=13=]]++; next} !([=13=] in unique)' file1 file2

区分两个文件之间的文本块的最佳方法是什么？

What's the best way to diff blocks of text between two files?

bash

diff