The ‘uuidgen’ command is used to generate new UUID (Universally Unique IDentifier) strings. UUIDs are 128-bit values that are unique across all devices and all time. They are commonly used as unique identifiers in computer systems and databases.

Use case 1: Generate a UUID string

Code:

uuidgen

Motivation: Generating a UUID string can be useful in various scenarios, such as generating unique keys for database records or generating random names for temporary files. With the ‘uuidgen’ command, you can quickly generate a UUID string without having to write custom code.

Explanation: The ‘uuidgen’ command does not require any arguments. When executed, it generates a new UUID string and prints it to the terminal.

Example Output:

90F479DA-1371-496D-99D3-45FF60B8D76E

Conclusion:

The ‘uuidgen’ command provides a simple and convenient way to generate new UUID strings. Whether you need unique identifiers for your database records or random names for temporary files, the ‘uuidgen’ command can quickly generate UUIDs for you.