256term.sh

# Enable 256 color capabilities for appropriate terminals

# Set this variable in your local shell config (such as ~/.bashrc)
# if you want remote xterms connecting to this system, to be sent 256 colors.
# This must be set before reading global initialization such as /etc/bashrc.
#   SEND_256_COLORS_TO_REMOTE=1

# Terminals with any of the following set, support 256 colors (and are local)
local256="$COLORTERM$XTERM_VERSION$ROXTERM_ID$KONSOLE_DBUS_SESSION"

if [ -n "$local256" ] || [ -n "$SEND_256_COLORS_TO_REMOTE" ]; then

  case "$TERM" in
    'xterm') TERM=xterm-256color;;
    'screen') TERM=screen-256color;;
    'Eterm') TERM=Eterm-256color;;
  esac
  export TERM

  if [ -n "$TERMCAP" ] && [ "$TERM" = "screen-256color" ]; then
    TERMCAP=$(echo "$TERMCAP" | sed -e 's/Co#8/Co#256/g')
    export TERMCAP
  fi
fi

unset local256