So gnome-screenshot has the following options:
tim@Hairy14:~$ gnome-screenshot --help
Usage:
gnome-screenshot [OPTION…] Take a picture of the screen
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gtk Show GTK+ Options
Application Options:
-c, --clipboard Send the grab directly to the clipboard
-w, --window Grab a window instead of the entire screen
-a, --area Grab an area of the screen instead of the entire screen
-b, --include-border Include the window border with the screenshot
-B, --remove-border Remove the window border from the screenshot
-p, --include-pointer Include the pointer with the screenshot
-d, --delay=seconds Take screenshot after specified delay [in seconds]
-e, --border-effect=effect Effect to add to the border (shadow, border, vintage or none)
-i, --interactive Interactively set options
-f, --file=filename Save screenshot directly to this file
--version Print version information and exit
--display=DISPLAY X display to use
The one I'm interested in is -a
.
If it run it, the following happens, I can click and drag anywhere on the screen and it saves an image, of the are I chose.
I have the short cut Alt+Shift+4 set up for this.
But what I want is a predefined area, somehting allong the lines of this:
gnome-screenshot -a 400x500+100x100
(i.e. 400 down, 500 in and 100×100 area).
Is this possible, and is there a command to do this?
NB: I could use the image cropping tool convert -crop
like this:
convert -crop 100x100+50+50 Pictures/Screenshot.png Pictures/Screenshot-cropped.png
but I would like it if it was built in, as cropping a full print screen makes it blurry…
Best Answer
It looks like there isn't such an option but you can control your mouse from command line using
xdotool
, so you can try to play with it:I use
(cmd &)
syntax to have command running in background (using just && here won't work becausegnome-screenshot
waits for input) and make small delay (try to experiment with values of sleep) to be sure that mouse won't be moving before it's ready. Then I usemousemove x y
,mousedown 1
andmouseup 1
commands to simulate grabbing an area.You should also check out more suited tool for getting screenshots which is
import
from ImageMagick: