I use LibreOffice Writer a lot, but I really do hate getting around in a GUI, I much prefer the CLI, so is there any way to open a file using LibreOffice Writer through the Terminal?
The more general solution is
xdg-open. This not only works for LibreOffice documents, but for any file or URL:
opens file-or-url using your preferred application.
If you normally work from the terminal, then having
alias o=xdg-open in
~/.bash_aliases makes life simple:
o my-document.odt o https://askubuntu.com
You may then also enjoy
sr (surfraw) for rapid web searches from the command-line.