What is `>>` operator?

The >> operator in a Unix-like environment is used for output redirection, specifically for appending. Here's what it does:

• Appends Output: It takes the output of a command and adds it to the end of a specified file.
• Does Not Overwrite: If the specified file already exists, using >> will not overwrite its contents; instead, it will add the new output after the existing content. If the file does not exist, it will create a new file.

Example:

echo "Hello again!" >> example.txt

In this example, the text "Hello again!" is appended to example.txt. If example.txt already contains text, the new text will be added at the end.

If you have any further questions or need more details, feel free to ask!