[英]Compare two files in Bash Script
I have a problem when comparing two files, which I do by using the command:比较两个文件时遇到问题,我使用以下命令:
diff file1.csv file2.csv >> outputfile.csv
Everything works correctly.一切正常。 The problem is, if there's a line missing in one of them, my IDs start to differ/are no longer the same and everything is shifted, so
diff
returns every line after the shift.问题是,如果其中一个缺少一行,我的 ID 开始不同/不再相同并且所有内容都被转移,因此
diff
在转移后返回每一行。
How can I remedy this problem?我该如何解决这个问题?
Example:例子:
Skip the ID column when doing the comparison.进行比较时跳过 ID 列。 You can use process substitution for this.
您可以为此使用流程替换。
diff <(cut -d, -f2- file1.csv) <(cut -d, -f2- file2.csv)
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