I am unable to close octave

Question

I had a problem with installing Octave. Now I am unable to close it once it is opened. And I am unable to shutdown the computer. What path should I set, what /etc/environment should I set?

I had used these commands to install:

$ sudo apt-add-repository ppa:octave/stable
$ sudo apt-get update
$ sudo apt-get install octave
$ octave

karel · Answer 1 · 2020-07-20T07:59:47.387

2

You got this error message:

E: The repository 'http://ppa.launchpad.net/octave/stable/ubuntu bionic Release' does not have a Release file.

ppa:octave/stable does not support Ubuntu 18.04, so remove it from sources.list and install the octave package from the default Ubuntu 18.04 repositories instead. Open the terminal and type:

pkill octave  
sudo add-apt-repository --remove ppa:octave/stable
sudo add-apt-repository --remove ppa:mc3man/trusty-media
sudo apt-get update
sudo apt purge octave 
sudo apt install octave

edited Jul 20 '20 at 07:59

answered Jul 20 '20 at 07:47

karel

114,770

I am getting error code one – raghu ram Jul 20 '20 at 07:59
I am unable to update apps , what to do? – raghu ram Jul 20 '20 at 11:26
The PPAs that were added to your sources.list are not compatible with 18.04, so you are unable to update any apps that were installed from these PPAs. – karel Jul 20 '20 at 11:28
@karel anyway apt-add-repository and add-apt-repository are synonyms. – N0rbert Jul 20 '20 at 13:31
@raghuram If this answered your question please click the checkmark to the left of this answer to mark it as accepted. The checkmark will change color from gray to green when it is clicked. – karel Aug 24 '20 at 07:12

I am unable to close octave

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