Shell命令查找两个文件中的公共行 [英] Shell command to find lines common in two files

问题描述

我确定我曾经找到一个 shell 命令，它可以打印两个或多个文件中的公共行.它叫什么名字?

I'm sure I once found a shell command which could print the common lines from two or more files. What is its name?

它比 diff 简单得多.

It was much simpler than diff.

推荐答案

您正在寻找的命令是 comm.例如:-

The command you are seeking is comm. eg:-

comm -12 1.sorted.txt 2.sorted.txt

这里:

-1 : 抑制第 1 列(1.sorted.txt 独有的行)

-1 : suppress column 1 (lines unique to 1.sorted.txt)

-2 : 抑制第 2 列(2.sorted.txt 独有的行)

-2 : suppress column 2 (lines unique to 2.sorted.txt)

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