Linux Command Directory
This directory of Linux commands is from Linux in a Nutshell, 5th Edition.
Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.
usleep [microseconds] usleep [options]
Sleep some number of microseconds (default is 1).
Print help information and then exit.
Print usage message and then exit.
Print version information.