Michael Durrant helped me with his comment, i was an idiot not to think that way in the first place, i just had to do:

apt-get remove rbenv

Since i didn't install it through a package manager, rather followed the instructions on GitHub, i thought that it wasn't appropriate (although i first tried apt-get uninstall instead of apt-get remove).

Answer from Zippie on Stack Overflow
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GitHub
github.com › rbenv › rbenv › issues › 933
Trying to uninstall rbenv · Issue #933 · rbenv/rbenv
September 26, 2016 - Hi. I have been trying to uninstall rbenv, however it seems to be lingering on my system! I used sudo apt-get remove rbenv, and it said it had removed it. However, when I ran this command: user@user-pc-SATELLITE-C55-A:/opt/metasploit-fra...
Author   BytesDirect
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The Geek Diary
thegeekdiary.com › how-to-uninstall-rbenv-from-ubuntu
How to uninstall rbenv from Ubuntu – The Geek Diary
You can uninstall or removes an installed rbenv package itself from Ubuntu through the terminal, using the below command:
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Ruby Toolbox
ruby-toolbox.com › projects › sstephenson › rbenv
Project: sstephenson/rbenv - The Ruby Toolbox
While disabled, rbenv will still be accessible on the command line, but your Ruby apps won't be affected by version switching. To completely uninstall rbenv, perform step (1) and then remove the rbenv root directory.
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DevManuals
devmanuals.net › install › ubuntu › ubuntu-16-04-LTS-Xenial-Xerus › how-to-install-rbenv.html
How to install rbenv On Ubuntu 16.04 Lts? Uninstall and remove rbenv Package
For uninstalling this package you can easily use the apt command and remove the package from Linux Operating System. ... This will remove rbenv and all its dependent packages which is no longer needed in the system. Completely removing rbenv with all configuration files:
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GitHub
github.com › rbenv › rbenv
GitHub - rbenv/rbenv: Manage your app's Ruby environment · GitHub
While disabled, rbenv will still be accessible on the command line, but your Ruby apps won't be affected by version switching. To completely uninstall rbenv, perform step (1) and then remove the rbenv root directory.
Starred by 16.7K users
Forked by 1.4K users
Languages   Shell 97.8% | Ruby 1.6%
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TheLinuxFAQ
thelinuxfaq.com › ubuntu › ubuntu-17-04-zesty-zapus › rbenv
How to uninstall or remove rbenv software package ...
You can uninstall or removes an installed rbenv package itself from Ubuntu 17.04 (Zesty Zapus) through the terminal,
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GitHub
github.com › rbenv › rbenv › issues › 148
uninstall? · Issue #148 · rbenv/rbenv
November 19, 2011 - rbenv / rbenv Public · Notifications · You must be signed in to change notification settings · Fork 1.4k · Star 16.7k · New issueCopy link · New issueCopy link · Closed · Closed · uninstall?#148 · Copy link · cj · opened · on Nov 19, 2011 · Issue body actions ·
Author   cj
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OnWorks
onworks.net › home
rbenv-uninstall
Run online rbenv-uninstall in free Ubuntu online, free Fedora online, free Windows online emulator or free MACOS online emulator by OnWorks
Find elsewhere
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Linux Packages
linux-packages.com › главная страница › shopping in milan
How to install or uninstall "rbenv" on Ubuntu 20.04 LTS (Focal ...
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Stack Overflow
stackoverflow.com › q › 50778327
ubuntu - How can I completely remove rbenv, rvm, ruby, and rails from my system? - Stack Overflow
I want to completely remove rbenv, rvm, Ruby, and Rails from my system so I can install rbenv and Ruby from a clean slate. I have tried to use sudo apt remove, sudo apt purge, sudo apt autoremove, and sudo apt uninstall for both rbenv and rvm ...
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Nicedoc
nicedoc.io › rbenv › rbenv
Nicedoc
June 22, 2022 - pretty README as service
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Installion
installion.co.uk › ubuntu › xenial › universe › r › rbenv › uninstall › index.html
Installion
Here you will find instructions on how to install and uninstall rbenv for Ubuntu 16.04 LTS xenial
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DigitalOcean
digitalocean.com › community › tutorials › how-to-install-ruby-on-rails-with-rbenv-on-ubuntu-20-04
How To Install Ruby on Rails with rbenv on Ubuntu 20.04 | DigitalOcean
September 1, 2022 - As you download additional versions of Ruby, you may accumulate more versions than you would like in your ~/.rbenv/versions directory. Use the ruby-build plugin’s uninstall subcommand to remove these previous versions.
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GitHub
github.com › rbenv › rbenv › issues › 1007
Uninstalling rbenv · Issue #1007 · rbenv/rbenv
June 12, 2017 - I can't uninstall rbenv from Debian 8 server. Readme says "simply remove the rbenv init line from your shell startup configuration" I can't found rbenv init. Where is shell startu...
Author   deadman2000
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GitHub
raw.githubusercontent.com › rbenv › rbenv › master › README.md
https://raw.githubusercontent.com/rbenv/rbenv/mast...
This will **delete all Ruby versions** ... the rbenv package removal: - Homebrew: `brew uninstall rbenv` - Debian, Ubuntu, and their derivatives: `sudo apt purge rbenv` - Archlinux and its derivatives: `sudo pacman -R rbenv` ## Development Tests are executed using [Bats](https...
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GitHub
gist.github.com › IanVaughan › 2902499
Uninstall all rbenv gems · GitHub
#!/bin/sh RBENVPATH=`rbenv root` echo $RBENVPATH RUBIES=`ls $RBENVPATH/versions` for ruby in $RUBIES; do echo '---------------------------------------' echo $ruby rbenv local $ruby gem cleanup done ... --no-verbose is what removes the header. (We may need another fix in the future if things change again) #!/bin/bash gem_remove() { gem list --no-versions --no-verbose | xargs gem uninstall -aIx gem list } gem_remove_all() { #rbenv versions --bare RBENVPATH=`rbenv root` echo $RBENVPATH RUBIES=`ls $RBENVPATH/versions` for ruby in $RUBIES; do echo '---------------------------------------' echo $ruby rbenv local $ruby gem_remove done }
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DigitalOcean
digitalocean.com › community › tutorials › how-to-install-ruby-on-rails-with-rbenv-on-ubuntu-18-04
How To Install Ruby on Rails with rbenv on Ubuntu 18.04 | DigitalOcean
July 14, 2018 - For example, typing this will uninstall Ruby version ... With the rbenv uninstall command you can clean up old versions of Ruby so that you do not have more installed than you are currently using.
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DevPress
devpress.csdn.net › linux › 62e79587a254c06d462e2b40.html
How To Install Ruby on Rails with rbenv on Ubuntu 20.04_ubuntu_weixin_0010034-Linux
August 1, 2022 - As you download additional versions of Ruby, you may accumulate more versions than you would like in your ~/.rbenv/versions directory. Use the ruby-build plugin’s uninstall subcommand to remove these previous versions.
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Karloespiritu
karloespiritu.github.io › cheatsheets › rbenv
rbenv · Cheatsheets
# Install rbenv $ brew install rbenv # Completely uninstall rbenv $ brew uninstall rbenv # list all available versions $ rbenv install -l # install a specific Ruby version $ rbenv install 2.3.0 # Sets a local application-specific Ruby version # by writing the version name to a `.ruby-version` ...