resize.sh provides a simple Posix shell script replacement for the base
functionality of the resize utility found in the xterm sources.
It is sufficient to detect the size of VTxx like terminals (terminal emulators,
these days), set the termios size and output shell commands to set LINES and
COLUMNS in an eval statement.
It is meant to be used on small systems like Raspberry Pis when using the
serial console. resize allows a more convenient setup of the terminal during
login. Using this resize replacement, the xterm package does not need to be
installed to have the resize functionality. xterm might require a lot of
dependencies, especially when a graphical desktop is not desired.
On Debian like systems, put the following lines in /etc/profile:
case $(/usr/bin/tty) in
/dev/ttyAMA0)
eval $(/usr/bin/tset -sw)
eval $(/usr/bin/resize.sh)
;;
esac