A simple way to compare two text files under Linux

Title: A simple way to compare two text files under Linux

In daily work and study, we often encounter the need to compare two text files. Condition. In Linux systems, there are many simple methods that can help us compare the contents of two text files quickly and accurately. This article will introduce several commonly used methods of comparing text files, with specific code examples.

1. Use the diff command

The diff command is one of the most commonly used text file comparison tools. It can be used to compare the differences between two files and display them in line form. To compare two files, just enter the following command in the terminal:

diff file1.txt file2.txt

This command will output the differences between the two files, showing The specific number of different lines, added content, deleted content, etc.

2. Use the vimdiff command

vimdiff is a comparison tool that comes with the Vim editor, which can display the differences between two text files in a graphical interface. To use vimdiff to compare two files, you need to enter the following command in the terminal:

vimdiff file1.txt file2.txt

This will open the two files in the Vim editor and open them as Different colors identify the differences between the two files, allowing users to quickly compare them.

3. Use the cmp command

The cmp command can compare the contents of two files byte by byte. If the two files are exactly the same, there will be no output. To compare two files using the cmp command, simply enter the following command in the terminal:

cmp file1.txt file2.txt

If the output is empty, it means that the contents of the two files are identical ;If there is output, the position of the first different byte will be displayed.

4. Use the meld tool

meld is a graphical file comparison tool that can be installed and used in Linux systems. Through meld, users can easily compare the contents of two files and view and manage differences more intuitively and in detail. To use meld to compare two files, you can enter the following command in the terminal:

meld file1.txt file2.txt

5. Summary

Under Linux system, compare There are many ways to create two text files. The methods introduced above are relatively common and convenient. Different comparison tools are suitable for different needs, and users can choose the appropriate tool for file comparison according to their own habits and needs. I hope the above content can help readers compare the contents of text files more conveniently.

The above is the detailed content of A simple way to compare two text files under Linux. For more information, please follow other related articles on the PHP Chinese website!