What does this shell command do?

echo "Hello, World" >> hello.txt
system
What does this shell command do?

echo "Hello, World" >> hello.txt
user
This command appends "Hello, World" as a new line into the hello.txt file.
assistant
<|system|>
</s>
<|user|>
What does this shell command do?

echo "Hello, World" >> hello.txt</s>
<|assistant|>
This command appends "Hello, World" as a new line into the hello.txt file.</s>
