Create script and passwd for runing vnc at remotehost

vncconf.sh

#!/bin/sh

# What need to be done
# 1. local binary script: ${REMOTE}-vnc
#	
#| #!/bin/sh
#| 
#| PORT=5998
#| tmux new ssh -L${PORT}:localhost:${PORT} pi-01 bin/vnc-at-${PORT} \; \
#| 	split -v "sleep 3; vncviewer -passwd $HOME/.vnc/pi-01-${PORT} localhost:${PORT}" \; \
#| 	detach
#
# 2. remote binary script: vnc-at-${PORT}
#
#| #!/bin/sh
#|
#| vncserver :98 -geometry 1600x900 -depth 24 -name vnc5998 -nevershared -localhost
#| tail -f $HOME/.vnc/pi-01:98.log
#
# 3. password file for vnc
#
# printf "$RWPASSWD\n$ROPASSWD\n" | vncpasswd -f > passwd

[ -z "$2" ] && echo "Usage: $0 hostname portno" && exit

HOSTNAME="$1"
PORTNO="$2"

D=`mktemp -d`
LSCR="$D/local-script"
RSCR="$D/remote-script"
PASS="$D/passwd"

L_SCRIPT="$HOME/bin/${HOSTNAME}-vnc"
R_SCRIPT="bin/vnc-at-${PORTNO}"
L_PASSWD="$HOME/.vnc/${HOSTNAME}-${PORTNO}"
R_PASSWD=".vnc/passwd"

# Here, we generated 'random' password for read/write access
# you might want to change the read-only access below

RWPASSWD=`date|md5sum|cut -c1-8`
ROPASSWD="READONLY"
printf "$RWPASSWD\n$ROPASSWD\n" | vncpasswd -f > $PASS

cat <<_EOT_ > $LSCR
#!/bin/sh
PORT=$PORTNO
tmux new ssh -L\${PORT}:localhost:\${PORT} $HOSTNAME bin/vnc-at-\${PORT} \\; \\
     split -v "sleep 3; vncviewer -passwd \$HOME/.vnc/$HOSTNAME-\${PORT} localhost:\${PORT}" \\; \\
     detach
_EOT_

DISP=`expr $PORTNO - 5900`

cat <<_EOT_ > $RSCR
#!/bin/sh

vncserver :$DISP -geometry 1600x900 -depth 24 -name vnc${PORTNO} -nevershared -localhost
tail -f \$HOME/.vnc/\`hostname\`:${DISP}.log

_EOT_

[ -f "$L_SCRIPT" ] && echo "$L_SCRIPT already exist" && exit
[ -f "$L_PASSWD" ] && echo "$L_PASSWD already exist" && exit

# Here, the part we need to run to actual create local/remote files
echo "## Please copy and paste the following commands to create the script and config"
echo cp -v $LSCR $L_SCRIPT
echo ssh $RSCR ${HOSTNAME} mkdir -p bin .vnc
echo scp $RSCR ${HOSTNAME}:$R_SCRIPT
echo cp -v $PASS $L_PASSWD
echo scp $PASS ${HOSTNAME}:$R_PASSWD