NAME
usleep - sleep some number of microseconds SYNOPSIS usleep [number] DESCRIPTION usleep sleeps some number of microseconds. The default is 1. OPTIONS usage Show short usage message.
help, -? Print help information.
-v, version Print version information. BUGS Probably not accurate on many machines down to the microsecond. Count
on precision only to -4 or maybe -5. AUTHOR Donald Barnes
Erik Troan Red Hat, Inc USLEEP(1)