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Random updates to resizewin(1) man page.

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Reviewed by:	cem, Daniel O'Connor <darius@dons.net.au>
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D10640
This commit is contained in:
Edward Tomasz Napierala 2017-05-09 20:45:21 +00:00
parent 1e0358de5b
commit df2a34c016
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=318116
1 changed files with 24 additions and 16 deletions
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40
usr.bin/resizewin/resizewin.1
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@ -27,27 +27,38 @@
.\"
.\" $FreeBSD$
.\"
.Dd May 8, 2017
.Dd May 9, 2017
.Dt RESIZEWIN 1
.Os
.Sh NAME
.Nm resizewin
.Nd update the kernel window size for the current TTY
.Nd update terminal size
.Sh SYNOPSIS
.Nm
.Op Fl z
.Sh DESCRIPTION
Query the terminal emulator window size with the
The
.Nm
utility
queries the terminal emulator for the current window size and updates
the size known to the kernel using the
.Dv TIOCSWINSZ
ioctl and set the window size known by the kernel to the new values.
The terminal is assumed to be VT100/ANSI compatible.
ioctl.
.Pp
The following options are available:
.Bl -tag -width ".Fl z"
.It Fl z
Do nothing unless the current kernel terminal size is zero.
This is useful when run from user's profile (shell startup) scripts:
querying the window size is required for serial lines, but not when
logging in over the network, as protocols like TELNET or SSH already
handle the terminal size by themselves.
.El
.Pp
After a terminal window has been resized, running
.Nm
updates the kernel's window size to match the new size.
.Pp
.Nm
is functionally similar to
.Xr resize 1 ,
@ -56,21 +67,18 @@ which is part of the
distribution.
However,
.Nm
only works with VT100/ANSI-compatible terminals and does
not emit commands to set environment variables.
only works with VT100/ANSI-compatible terminals and directly sets
the terminal size instead of emitting commands to set environment variables.
.Pp
After a terminal window has been resized, running
.Nm
updates the kernel's window size to match the new size.
.Pp
Note that virtually all modern terninals support VT100/ANSI escape
sequences, including xterm, konsole, gnome-terminal iTerm,
The terminal is assumed to be VT100/ANSI compatible.
The VT100/ANSI escape sequences are supported by virtually all modern
terminals; this include xterm, konsole, gnome-terminal, iTerm,
Terminal.app, and PuTTY.
.Sh SEE ALSO
.Xr resize 1 ,
.Xr stty 1
.Xr stty 1 ,
.Xr tty 4
.Sh HISTORY
The
.Nm
command first appeared in
.Fx 11 .
.Fx 11.0 .