The double ampersand characters (&& ) are used to separate commands to be executed conditionally, where if the command to the left of the ampersands fails, then the command to the right of the ampersands will be executed.

The double ampersand characters (&&) in command line environments (like Bash) are actually used to chain commands together where the command on the right of the && is executed only if the command on the left succeeds. If the command on the left fails, the command on the right will not be executed.