I've looked up the manual of
update-alternatives several times but I can't find out how to show the current link pointing to a specific alternative, and that information is needed when adding a new alternative.
--install <link> <name> <path> <priority>
Let's say I want to add a new version of Java Runtime Edition, but I don't know the current symlink that links to the alternative (
<link> parameter). What I currently do is:
sudo update-alternatives --install /tmp/randomStuff java /usr/local/java/jre1.7.0_25/bin/java 0
That command will output:
update-alternatives: renaming java link from /usr/local/bin/java to /tmp/randomStuff.
Reading the output I find out the old link that was pointing to the alternative, so I can finally run my command again with the right
<link> parameter, changing
sudo update-alternatives --install /usr/local/bin/java java /usr/local/java/jre1.7.0_25/bin/java 0
That works fine, but as you see, running the command with
/tmp/randomStuff as the
<link> parameter is very awkward.
So, here comes the questions: (1) Are there any
update-alternative arguments that can output the current link that is pointing to a specific alternative, or (2) is there a way to install a new alternative without having to provide a new parameter, simply keeping the current