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Inspired_Blue
Asked: 2016-01-01 02:17:30 +0800 CST

How to use `scrot` to take screenshots of a particular window by name?

  • 772

If I would like to select a window for scrot this could be easily done with:

scrot -s name.jpg

But if I want to ask scrot to keep taking screenshots from a selected window, then I don't know how to do this. The following is what I tried:

#!/bin/sh
while true
do
   scrot -s "$(date)".jpg
   sleep 5
done

The problem with the above is: after every 5 seconds I have to tell scrot which window by clicking it.

If only I could pass the window by clicking it only once the first time it would be perfect.

If not, could I tell scrot which window by telling it the window name?

Edit: I also want it to work even when the window is minimised. How to do this?

scripts

1 Answers

  1. From man scrot:

           -u, --focused
            Use the currently focused window.

    So you could just change your script like so:

    #!/bin/sh
while true
do
   scrot -u "$(date)".jpg
   sleep 5
done

    However this will start taking screenshots as soon as the script is started, which is probably undesired; this would be a bit more user-friendly, as it will start taking screenshots only after the user has manually selected a window:

    #!/bin/sh
scrot -s "$(date)".jpg
while true
do
   sleep 5
   scrot -u "$(date)".jpg
done
    • 8