53 lines
1.5 KiB
Groff
53 lines
1.5 KiB
Groff
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.Dd Februar 17, 1995
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.Dt WATCH 8
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.Os
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.Sh NAME
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watch - tty snoop watching utility.
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.Sh SYNOPSIS
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watch [-ciot] [<tty name>]
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.Sh DESCRIPTION
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watch utility allows user to see all data coming to the tty,almost
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the same way as user on this tty.
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Only root can run watch.
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The following options are available:
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-c Reconnect on close. When tty on which watching was made closed,
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utility will automatically reattach itself to the same tty.
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By default utility will ask user to enter new tty name if running
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in interactive mode or exit while non-interactive.
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-i Force interactive mode.Interactive mode is a default if utility
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started from tty. If output redirected to file, you can still force
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it into interactive mode by this option.
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-o Reconnect on overflow. The behaviour of utility on overflow is same
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as for tty close. For more info see snp(4).
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-t Timestamp.Print date and time each time, tty watching started.
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The <tty name> is one of following types:
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ttyp?,ttyq?,ttyr? - pseudo tty devices.
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ttyv? - virtual ttys (syscons).
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tty0?,ttyd? - serial lines.
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Each name can be preceeded by "/dev/".
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Also recognized:
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pty[NUM] - pseudotty's.
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vty[NUM] - virtual ttys.
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sio[NUM] - serial lines.
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While running interactive, all user input discarded except :
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Ctrl+C - Exit watch.
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Ctrl+X - Change attached tty.
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Ctrl+W - Clear screen.
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.Sh SEE ALSO
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snp(4),pty(4),sio(4)
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.Sh BUGS
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No terminal emulation involved,all user output comes to the screen as-is.
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.Sh HISTORY
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FreeBSD 2.1,By Ugen J.S.Antsilevich <ugen@NetVision.net.il>
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