NAME

     tcvt - two column virtual terminal

SYNOPSIS

     tcvt [-c columns] [-h] [-r] [--] program options
     optcvt program options

DESCRIPTION

     The two column virtual terminal emulates a virtual terminal inside another virtual terminal.  The emulated
     virtual terminal is twice as tall and half as wide as the original terminal.  The upper half of the virtual
     terminal goes to the left and the lower half goes to the right of the original terminal.  An ANSI terminal
     is emulated.

     While tcvt does this conversion unconditionally, the optcvt can be used with smaller terminals.  It will
     only invoke tcvt, if the terminal is wide enough and otherwise simply exec the passed program.

OPTIONS

     Both programs take a program and options to that program.  They execute the given program.  If no program
     is given a shell is executed.

     In addition the tcvt tool accepts a few switches.

     -c, --columns
             Specify the number of columns. This defaults to two.

     -h, --help
             Print a quick option overview and exit.

     -r, --reverse
             Order columns so that the last one is the left most.

     --      Signal end of options.

     Any non-option argument signals the end of options for tcvt.

EXIT STATUS

     The exit status of the wrapped program is propagated.  When tcvt produces an error of its own, 255 is
     returned.

BUGS

     Not all ANSI terminal features are emulated.  If you experience rendering issues, you can export the
     environment variable TCVT_DEVEL.  It causes tcvt to crash upon seeing an unimplemented character sequence.
     The error message includes the unrecognized sequence.

SEE ALSO

     screen(1) splitvt(1)

AUTHOR

     Helmut Grohne <helmut@subdivi.de>

AVAILABILITY

     tcvt is available at http://subdivi.de/~helmut/tcvt/.

                                                  Apr 15, 2012