Delay for a specified time, pause for an amount of time specified by the sum of the values of the command line arguments.

      sleep [NUMBER [smhd]]...


   s  :  seconds (default)

   m  :  minutes

   h  :  hours

   d  :  days

“O sleep, O gentle sleep, nature's soft nurse, how have I frighted thee, that thou no more wilt weigh my eyelids down, and steep my senses in forgetfulness” ~ Shakespeare (Henry IV)


nice - Change job scheduling priority
at(1) -
Equivalent Windows commands: SLEEP - Wait for x seconds

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