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+WATCH(1) - General Commands Manual
+
+# NAME
+
+**watch** - execute program periodically, showing output fullscreen
+
+# SYNOPSIS
+
+**watch**
+\[**-tv**]
+\[**-n** *time*]
+\[*command*]
+
+# DESCRIPTION
+
+The
+**watch**
+utility runs a
+*command*
+repeatedly and displays its output fullscreen.
+This allow you to watch an output of the
+*command*
+as it changes.
+If the
+*command*
+is absent,
+**watch**
+will prompt for it.
+
+The options are as follows:
+
+**-n** *time*
+
+> Set delay between screen updates in seconds.
+> The default value is 2 seconds.
+
+**-t**
+
+> Disable output of the title bar.
+
+**-h**
+
+> Display usage and terminate.
+
+**Watch**
+will terminate with the keyboard interrupt
+('^C')
+
+# EXAMPLE
+
+**watch**
+\-n 1 ps
+
+# HISTORY
+
+The original
+**watch**
+was written by Tony Rems <rembo@unisoft.com> in 1991,
+with mods and corrections by Francois Pinard.
+It was rewritten completly from scratch by Dimitri Sokolyuk
+<demon@dim13.org> in 2003.
+
+OpenBSD 6.5 - December 25, 2004