glenda.party
term% ls -F
term% pwd
$home/manuals/plan9_4th/1/vt
term% cat index.txt
VT(1)                       General Commands Manual                      VT(1)



NAME
       vt - emulate a VT-100 or VT-220 terminal

SYNOPSIS
       vt [ -2abcx ] [ -f font ] [ -l log ]

DESCRIPTION
       Vt  replaces  a  rio  window with a fresh instance of the shell, rc(1),
       running within an emulation of a DEC VT-100 terminal.  To exit vt, exit
       the rc it starts.

   Options
       2

       a

       x      change  vt  to emulate a VT-220, ANSI, or XTerm terminal respec‐
              tively.

       b      changes the color scheme to white text on  a  black  background,
              but potentially with colors from escape sequences.

       c      changes the color scheme to monochrome (no colors).

       f      sets the font.

       l      names a log file for the session.

   Menus
       The  right  button has a menu with the following entries to provide the
       sort of character processing expected by non-Plan 9 systems:

       24x80  Resize the vt window to hold 24 rows of 80 columns.

       crnl   Print a newline (linefeed) character after receiving a  carriage
              return from the host.

       cr     Do not print a newline after carriage return.

       nlcr   Print a carriage return after receiving a newline from the host.

       nl     Do not print a carriage return after newline.

       raw    Enter raw (no echo, no interpretation) character mode for input.

       cooked Leave raw mode.

       exit   Exit vt.

       The middle button has a menu with the following entries:

       backup Move the display back one screenful.

       forward
              Move  the display forward one screenful.  (These are a poor sub‐
              stitute for a scroll bar.)

       reset  Display the last screenful; the same as  going  forward  to  the
              end.

       clear  Clear  the  screen.   Previous  contents  can be recovered using
              backup.

       send   Send the contents of the rio snarf buffer, just as send  in  the
              rio menu.

       scroll Make new lines visible as they appear at the bottom.

       page   When  the page fills, pause and wait for a character to be typed
              before proceeding.  The down arrow key advances a  page  without
              sending the character to the host.

SOURCE
       /sys/src/cmd/vt

BUGS
       This program is used only for communicating with foreign systems, so it
       is not as rich an emulation as its equivalent in other environments.

       Use care in setting raw and newline modes when connecting to Unix  sys‐
       tems  via con(1) or ssh(1).  It may also be necessary to set the emula‐
       tor into raw mode.



                                                                         VT(1)