.Dd November 30, 2018 .Dt SANDMAN 1 .Os "Causal Agency" . .Sh NAME .Nm sandman .Nd signal sleep . .Sh SYNOPSIS .Nm .Ar command ... . .Sh DESCRIPTION .Nm is a utility for Darwin systems. .Nm runs the .Ar command in a child process and sends it .Dv SIGTSTP and .Dv SIGCONT signals when the computer goes to sleep and wakes from sleep, respectively. . .Sh EXIT STATUS .Nm exits with the exit status of the child process. . .Sh SEE ALSO .Xr signal 3