.\" $Id$ .Dd December 25, 2004 .Dt WATCH 1 .Os .Sh NAME .Nm watch .Nd execute program periodically, showing output fullscreen .Sh SYNOPSIS .Nm watch .Op Fl tv .Op Fl s Ar time .Op Ar command .Sh DESCRIPTION .Nm runs .Ar command repeatedly and displays its output fullscreen. This allow you to watch an output of the .Ar command as it changes. The default delay between screen updates is 2 seconds. .Pp The .Nm will terminate with keyboard interrupt .Pq Sq ^C .Pp The options are as follows: .Bl -tag -width Ds .It Fl s Ar time Set delay between screen updates in seconds. .It Fl t Disable output of title bar. .It Fl v Display version and exit. .El .Pp .Sh EXAMPLE .Nm -s 1 ps .Pp .Sh AUTHORS The original .Nm was written by Tony Rems in 1991, with mods and corrections by Francois Pinard. .Pp It was rewritten by Dimitri Sokolyuk in 2003.