How can I uninstall Ruby on ubuntu?
Ruby on-RailsRubyUbuntuUninstallationRuby on-Rails Problem Overview
How can I uninstall Ruby 1.9.2dev (2010-07-02) [i486-linux] on ubuntu? Need to reinstall - please help
Ruby on-Rails Solutions
Solution 1 - Ruby on-Rails
This command should do the trick (provided that you installed it using a dpkg-based packet manager):
aptitude purge ruby
Solution 2 - Ruby on-Rails
Run the following command from your terminal:
sudo apt-get purge ruby
Usually works well for me.
Solution 3 - Ruby on-Rails
At first find out where ruby is? then
rm -rf /usr/local/lib/ruby
rm -rf /usr/lib/ruby
rm -f /usr/local/bin/ruby
rm -f /usr/bin/ruby
rm -f /usr/local/bin/irb
rm -f /usr/bin/irb
rm -f /usr/local/bin/gem
rm -f /usr/bin/gem
Solution 4 - Ruby on-Rails
I have tried many include sudo apt-get purge ruby , sudo apt-get remove ruby and sudo aptitude purpe ruby, both with and without '*' at the end. But none of them worked, it's may be I've installed more than one version ruby.
Finally, when I triedsudo apt-get purge ruby1.9(with the version), then it works.
Solution 5 - Ruby on-Rails
Run the following command on the terminal:
sudo apt-get autoremove ruby
Solution 6 - Ruby on-Rails
Here is what sudo apt-get purge ruby* removed relating to GRUB for me:
grub-pc
grub-gfxpayload-lists
grub2-common
grub-pc-bin
grub-common
Solution 7 - Ruby on-Rails
On Lubuntu, I just tried apt-get purge ruby* and as well as removing ruby, it looks like this command tried to remove various things to do with GRUB, which is a bit worrying for next time I want to reboot my computer. I can't yet say if any damage has really been done.
Solution 8 - Ruby on-Rails
If you used rbenv to install it, you can use
rbenv versions
to see which versions you have installed.
Then, use the uninstall command:
rbenv uninstall [-f|--force] <version>
for example:
rbenv uninstall 2.4.0 # Uninstall Ruby 2.4.0
If you installed Rails, it will be removed, too.
Solution 9 - Ruby on-Rails
Why you are removing old version of the ruby?
>rvm install 2.4.2 // version of ruby u need to insatll >rvm use 2.4.2 --default // set ruby version you want use by default
Using rvm you can install multiple ruby version in the system
Please follow below steps install ruby using rvm
sudo apt-get install libgdbm-dev libncurses5-dev automake libtool bison libffi-dev
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
curl -sSL https://get.rvm.io | bash -s stable
source ~/.rvm/scripts/rvm
rvm install 2.4.2
rvm use 2.4.2 --default
ruby -v
The installation step will change for different Ubuntu version
For more info,
Solution 10 - Ruby on-Rails
Uninstall the make install software when make uninstall invalid.
- make install will create file '.installed.list'
- Choose to clean up the files described in .installed.list (need to be careful if you have multiple versions)
- Case:
ruby2.4switch toruby2.3, thinking directly delete all ruby software, and then re-make install 2.3, see: Ruby # Installation Guide make install -> .installed.list- see .installed.list file, delete all install files.
rm -rf /usr/local/include/ruby-*
rm -rf /usr/local/lib/ruby
rm /usr/local/bin/erb /usr/local/bin/gem /usr/local/bin/irb /usr/local/bin/rdoc /usr/local/bin/ri /usr/local/bin/ruby
rm /usr/local/share/man/man1/erb.1 /usr/local/share/man/man1/irb.1 /usr/local/share/man/man1/ri.1 /usr/local/share/man/man1/ruby.1
rm /usr/local/lib/libruby-static.a
rm -rf /usr/local/lib/pkgconfig/ruby-*
which ruby
pkg-config --list-all|grep ruby
Solution 11 - Ruby on-Rails
You can use sudo apt remove ruby