Description: The ‘usleep’ command in Unix and Linux systems allows users to pause the execution of a script or program for a specified number of microseconds. This command is useful in situations where precise control over wait times is required, allowing processes to synchronize or space out appropriately. Unlike other wait commands that may operate in milliseconds or seconds, using microseconds provides much finer granularity, which is essential in applications where timing is critical. The implementation of this command reflects the need for versatile and compact tools that can perform multiple functions without requiring large system resources. In summary, ‘usleep’ is a powerful tool for developers and system administrators looking to optimize performance and process synchronization in programming and scripting environments.