How to output to a file?

To output the results of the diff command to a file, you can use the redirection operator > followed by the desired output file name. For example:

diff /path/to/file1.txt /path/to/file2.txt > output.txt

This command will compare file1.txt and file2.txt, and the differences will be written to output.txt. If output.txt already exists, it will be overwritten.

Example

If you want to compare two files and save the output to a file named diff_output.txt, you would run:

diff /home/labex/project/file1.txt /home/labex/project/file2.txt > /home/labex/project/diff_output.txt

Appending to a File

If you want to append the output to an existing file instead of overwriting it, you can use the >> operator:

diff /path/to/file1.txt /path/to/file2.txt >> output.txt

This will add the differences to the end of output.txt.