Scenario: The ship has a linux computer, you want a desktop screen capture that you can view on your own local computer.

Names:

• shipuser@shiplinux
• landuser@landserver
• me@mycomputer

## landuser@landserver must be able to ssh into shipuser@shiplinux Set up a ssh key so this is automatic.

## me@mycomputer must be able to ssh (with a key) into landuser@landserver

Make a bash script that looks like this:

## begin remote_screenshot.bash ##

#!/bin/bash
## store the image in ~/tmp
## image will be called "screenshotX.png"
cd ~/tmp; DISPLAY=":0.0" import -window root screenshotX.png

## give a clue
echo "on ship: desktop captured in ~/tmp/screenshotX.png"

Make it executable and test:

remote_screenshot.bash

And view the figure it made: ~/tmp/screenshotX.png

And on the landside server, make this script to execute screenshotX.png on the ship, and rsync the file back. Call this one remote_shipX_screenshot.bash

#—— begin script to get the screenshot back to the landserver —

#!/bin/bash
## works best if there is an ssh key on the remote machine
# - make the remote command for screenshot
# - this example requires a port to log in

ssh  -p ##### shipuser@shipserver /path/to/remote_screenshotX.bash

## bring it back, put it in /tmp
echo "bringing back the screenshot"
rsync -Pv -e 'ssh -p 56565' shipuser@shipserver:tmp/screenshotX.png /tmp

## move it to the location of choice
mv /tmp/screenshotX.png /path/to/server/shipX/shipuser_screenshotX.png

Test it by running

/path/to/scripts/remote_shipX_screenshot.bash

and view the png