What happens when the 'touch' command is used to create a new file?

The touch command is used to create a new, empty file if it doesn't already exist. If the file does exist, it updates the file's access and modification timestamps to the current time.

For example, running the command:

touch example.txt

will create an empty file named example.txt in the current directory if it doesn't exist. If it does exist, the command will simply update its timestamps without modifying the file's content.