What is command to see all java versions installed on linux?
On most Linux distributions you can use update-alternatives
like this:
sudo update-alternatives --config java
It will list all packages that provide java command and will let you change it. If you don't want to change it, simply Ctrl-C
from it.
There is only one catch - if you installed some java
not using official package manager (dpkg
/apt-get
, rpm
/yum
), but simply extracted it, update-alternatives will not show it.
You could do:
find / -name java
To find all files. The package manager with your version of Linux should also be able to list them.
I use this to list the Java installs available:
sudo update-alternatives --display java