Found this useful collection of Bash tips and tricks. May not be all
that well maintained, but I found some handy pages, like this list
<https://wiki.bash-hackers.org/scripting/bashchanges> of the more
interesting features that were introduced in the various versions of
Bash. I was looking for something like this because the Bash version in
my Debian Unstable installations was just upgraded to 5.1.
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