Starts a VNC server, automatically configuring password and display options

vncserver.sh

#!/bin/bash

# Options:
PASSWORD="mysecret"
DISPLAY=":10"
VNCSERVER_OPTIONS="-geometry 1024x768 -alwaysshared"
PASSWD_PATH="$HOME/.vnc/passwd"
XSTARTUP_PATH="$HOME/.vnc/xstartup"
VNCSERVER="tightvncserver"
VNCPASSWD="tightvncpasswd"
# NOTE: you can change `tightvncpasswd` by `vncpasswd` if you don't use
#       TightVNC but it won't work in some VNC implementations
NEW_SESSION="exec gnome-session"

vncserver_stop() {
    # Kill server for this display if is running
    $VNCSERVER -clean -kill $DISPLAY
}

vncserver_start() {
    echo "$PASSWORD" | $VNCPASSWD -f > $PASSWD_PATH
    chmod 600 $PASSWD_PATH
    echo "$NEW_SESSION" > $XSTARTUP_PATH
    $VNCSERVER $DISPLAY $VNCSERVER_OPTIONS
}

case "$1" in
    start)
        vncserver_start
    ;;

    stop)
        vncserver_stop
    ;;

    restart)
        vncserver_stop
        vncserver_start
    ;;

    *)
        echo "Usage: $0 <start|stop|restart>"
        exit 1
esac

restart)
    tightvnc_stop
    tightvnc_start
;;

@walbon, thank, you!
Corrected this bug and added more configuration in variables.