writes to standard output a character string that will invoke the
specified terminal capabilities. Where possible
is consulted to find the string to use. Some options however (marked
"virtual consoles only" below) do not correspond to a
capability. In this case, if the terminal type is "con" or "linux" the
string that invokes the specified capabilities on the PC Minix virtual
console driver is output. Options that are not implemented by the terminal
For boolean options (on or off), the default is on.
For conciseness, an 8-color below is black, red,
green, yellow, blue, magenta, cyan, or
A 16-color is an 8-color, grey, or bright followed
by red, green, yellow, blue, magenta,
cyan, or white.
The various color options may be set independently, at least at virtual
consoles, though the results of setting multiple modes (for example,
-underline and -half-bright)
Overrides the TERM environment variable.
Displays the terminal reset string, which typically resets the terminal to
its power on state.
Displays the terminal initialization string, which typically sets the
terminal's rendering options, and other attributes to the default values.
Turns the terminal's cursor on or off.
-repeat [on|off] (virtual consoles only)
Turns keyboard repeat on or off.
-appcursorkeys [on|off] (virtual consoles only)
Sets Cursor Key Application Mode on or off. When on, ESC O A, ESC O B, etc.
will be sent for the cursor keys instead of ESC [ A, ESC [ B, etc. See the
"vi and Cursor-Keys" section of the Text-Terminal-HOWTO for how this can
cause problems for vi users.
-linewrap [on|off] (virtual consoles only)
Turns automatic line-wrapping on or off.
Sets the terminal's rendering options to the default values.
Clears tab stops from the given horizontal cursor positions, in the range
1-160. Without arguments, clears all tab stops.
-regtabs [1-160] (virtual consoles only)
Clears all tab stops, then sets a regular tab stop pattern, with one tab
every specified number of positions. Without an argument, defaults to 8.
-blank [0-60] (virtual consoles only)
Sets the interval of inactivity, in minutes, after which the screen will be
automatically blanked (using APM if available). Without an argument,
defaults to 0 (disable console blanking).
Writes a snapshot of the given virtual console (with attributes) to the file
specified in the -file option, overwriting its contents; the default
is screen.dump. Without an argument, dumps the current virtual console.
Like -dump, but appends to the snapshot file instead of overwriting
it. Only works if no -dump options are given.
Sets the snapshot file name for any -dump or -append options
on the same command line. If this option is not present, the default is
screen.dump in the current directory.
-msg [on|off] (virtual consoles only)
Enables or disables the sending of kernel printk() messages to the
-msglevel 1-8 (virtual consoles only)
Sets the console logging level for kernel printk() messages. All
messages strictly more important than this will be printed, so a logging
level of 0 has the same effect as -msg on and a logging level of 8
will print all kernel messages.
may be a more convenient interface to the logging of kernel messages.
Puts the monitor into VESA vsync suspend mode.
Puts the monitor into VESA hsync suspend mode.
Puts the monitor into VESA powerdown mode.
Turns off monitor VESA powersaving features.
Sets the VESA powerdown interval in minutes. Without an argument, defaults
to 0 (disable powerdown). If the console is blanked or the monitor is in
suspend mode, then the monitor will go into vsync suspend mode or powerdown
mode respectively after this period of time has elapsed.
Sets the bell duration in milliseconds. Without an argument, defaults to 0.
Sets the bell frequency in Hz. Without an argument, defaults to 0.