When I installed Ubuntu 19.10, I chose the "Minimal Installation" option. I figured that the default programs (that are regularly installed with Ubuntu) would be accessible from some meta-package afterwards, but I have yet to find it.
Is there such a meta-package or other way to install the default Ubuntu 19.10 programs without re-installing whole system?
The metapackage you seek is
ubuntu-desktop
.This will give you most of the stock Ubuntu Desktop, minus some applications:
This will give you the complete stock Ubuntu Desktop with all applications installed from the Desktop image:
First, open the terminal and enter
Next, enter this command, this will install most of the apps and packages which are installed with the normal installation.
Hope this helps :)
Based in other responses but using other strategy:
sudo apt-get update
sudo apt-get install --install-recommends xorg xterm
sudo apt install --install-recommends firefox
sudo apt install --reinstall --install-recommends ubuntu-desktop
Maybe the 1 and 4 are enough, but I put the other dependencies if needed.
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