How to view the results of the “diff” command in Linux?

In Linux, the diff command is used to compare the differences between two files and output those differences to standard output. You can view the results of the diff command by following these steps:

1. Check directly in the terminal: After executing the diff command in the terminal, it will display the differences directly in the terminal. You can view the differences by looking at the terminal output.
2. Output the differences to a file: You can redirect the output of the diff command to a file using redirection symbols. For example, using the command diff file1.txt file2.txt > diff_output.txt will output the differences to the diff_output.txt file. You can then use any text editor to open the file and view the differences.
3. Viewing differences in large files using the less command: If the difference output is very large, it may be inconvenient to view it directly in the terminal. You can use the less command to paginate the differences output. For example, using the command diff file1.txt file2.txt | less will display the differences output in pages, allowing you to scroll down to view them by pressing the space bar.
4. If you prefer to visualize differences using a graphical interface, you can install graphical diff tools like Meld, Kompare, which provide a more intuitive and easier way to view file differences.