So first off, I'm half a newbie (experienced with coding in python and sql, but not so much on linux, ubuntu, or on what I think is Debian.

I need to find out how to open an image through the terminal. I'm also using a docker image that I pulled so I'm not a hundred percent sure what settings I can change. I've gone to the folder with the files and also done...

sudo su
sudo apt-get update
sudo apt-get install eog

when I try to eog image.JPEG , I get

Unable to init server: Could not connect: Connection refused

(eog:15434): Gtk-WARNING **: 21:21:33.463: cannot open display: :0

I've looked around and tried most things from export displaying to different numbers, did xhost localhost, I've checked x11 forwarding, although at some point if I xauth list, like I've read in some threads, I don't get anything back.

What information do you need from me so that you all can help me? Let me help you help me.
Again this is from a docker image I pulled.

edit: ANY way to open the image would help. If there's a way to save the files to local host for example, that would be fine too.

editedit: I also found this https://stackoverflow.com/a/22050116/12465516 and it looks interesting but the folder I need to access, I have to sudo su to see, I'm able to transport the folder to my downloads folder for example but I can't access the folder

CodePudding user response：

I solved it! I mkdir another folder in the previous folder then went back in the encrypted folder, made permissions open to everyone then moved all files to the new folder , control p and control q to keep image running while back in a new terminal, then i cp the new folder into the host folder of my choosing. all images are there, voila!

CodePudding user response：

Sounds like xhost won't let you run programs with gui from the shell. Try to disable the access control of xhost and then open your jpg:

xhost   && eog image.JPEG

For more type "man xhost" as a command in the shell.