Can you show a diff example?

Certainly! Here’s a simple example demonstrating how to use the diff command to compare two text files.

Step-by-Step Example

Create Two Text Files:

First, let's create two files named file1.txt and file2.txt.
```
echo "Hello World" > file1.txt
echo "Hello Universe" > file2.txt
```
Now, file1.txt contains:
```
Hello World
```
And file2.txt contains:
```
Hello Universe
```
Run the diff Command:

Now, let's compare the two files using the diff command:
```
diff file1.txt file2.txt
```
Output Explanation:

The output will look something like this:
```
1c1
< Hello World
---
> Hello Universe
```
Output Breakdown:
- 1c1: This indicates that line 1 in file1.txt needs to be changed to match line 1 in file2.txt.
- < Hello World: This line is from file1.txt.
- ---: This is a separator indicating the change.
- > Hello Universe: This line is from file2.txt.

Summary

The diff command shows that the content of the first line is different between the two files. To make file1.txt match file2.txt, you would replace "Hello World" with "Hello Universe".

Feel free to try this example in your terminal, and let me know if you have any questions!