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Display information about a specified command
update-alternatives
A convenient tool for maintaining symbolic links to determine default commands.
More information: <https://manned.org/update-alternatives>.
Trick copyright:
tl;dr; <
https://github.com/tldr-pages/tldr
>
update-alternatives --display {{java}}
click the source code to copy
install
update-alternatives
on any operating system with
command-not-found.com