I just installed ruby on Ubuntu by running this command:
sudo apt-get install ruby1.9.1-full
Then I downloaded RubyGems, extracted it, and navigated to that directory. When I typed this command:
ruby setup.rb or sudo ruby setup.rb
I got this error:
The program 'ruby' is currently not installed. You can install it by typing:
sudo apt-get install ruby
How should I invoke my Ruby installation? Should I reboot? Any ideas what the problem is?
I think your problem is twofold:
Ruby1.9 bundles rubygems by default so there is no need to install manually.
Ruby will proabably be installed as ruby1.9.1-full and you might need to rename manually to ruby. A good solution is to use rvm.
Use:
sudo ruby1.9.1 setup.rb
or
sudo ruby1.9.1-full setup.rb
Related
I installed ruby and rails and other gems in ubuntu via terminal using rvm
After installation i checked the version of ruby and rails.
Later i closed the terminal. now I am not able to find ruby in it.
I am new to ruby and ubuntu as well. I am sure its installed . But after closing the terminal when I open it again and type "ruby -v"
I get this :
ubuntu#ubuntu:~$ ruby -v
The program 'ruby' can be found in the following packages:
* ruby
* ruby1.8 (You will have to enable component called 'universe')
Try: sudo apt-get install <selected package>
ubuntu#ubuntu:~$
I would highly suggest using rbenv instead of rvm for Ruby these days.
A guide on how to install it is located here: https://gorails.com/setup/ubuntu/14.10
The Ruby will then be installed in the .rbenv directory that is located in your $HOME folder.
To answer your question on where rvm installs it, it is installed into .rvm folder in your $HOME
So I'm following this guide at http://railsapps.github.io/installrubyonrails-ubuntu.html
and I install RVM without a hitch. However, when I check for the version of ruby that I installed via:
ruby -v
I got the following:
The program 'ruby' can be found in the following packages:
* ruby1.8
* ruby1.9.1
Try: sudo apt-get install <selected package>
I tried to install ruby manually through RVM:
rvm install ruby
However, it merely told me that ruby had already been installed.
Has anyone encountered this same issue?
TIA
you can try with these urls these may help you for installing rvm and ruby installation and rails installation
https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm
This may help you
After installing rvm, if you installed it as root, try
source /etc/profile.d/rvm.sh
If you installed as user, try
source ~/.rvm/scripts/rvm
I've definitely been there. I created a script to help me install ruby on remote machines. This was made for new EC2 instances, but maybe it will work.
https://github.com/jubrad/install_ruby
If you do want to use it you'll likely have to remove rvm and your rubies first.
-https://rvm.io/rubies/removing
-sudo apt-get remove rvm
best of luck.
I am new to Ruby and just diving in. The Ruby tutorial says I should get the packaging system from here: http://rubyforge.org/frs/?group_id=126
I am on Ubuntu Linux. The page has a .tar and a .gem option for downloading. Which should I download?
Also, are gems exactly analogous to Java jars? And why do I need the gem packaging system if I can just download gems one by one as they are needed?
Ubuntu now have rubygems as a package
For Ubuntu 12:
sudo apt-get install rubygems
For Ubuntu 14.04:
sudo apt-get install rubygems-integration
On Ubuntu 16.04 and Ubuntu 18.04, both sudo apt-get install rubygems and sudo apt-get install rubygems-integration failed for me. Instead, I had to do this:
sudo apt-get install ruby-dev
If on Ubuntu 14.04 try below
sudo apt-get install rubygems-integration
First, download *.tar file, unpack this file, then go to rubygems directory in your console, and type
ruby setup.rb
That's it :)
If you install the full ruby application set with
sudo apt-get install ruby-full
You will get gems and much more by default. Tested on Ubuntu 16, it could also work on other version.
For me in Ubuntu 20.04 I did 3 things to create a new Ruby and Rails app.
Install Ruby development version
sudo apt install ruby-dev
Install rails from gem
sudo gem install rails
Create new application
rails new blog
I got error while installing rails(sudo apt install rails) only, So I installed devlopment version. I got permission related error while not using Sudo as well while installing gems and rails.
For Ubuntu
First install ruby:
sudo apt install ruby
Note that : sudo snap install ruby will throw this error :
error: This revision of snap "ruby" was published using classic
confinement and
thus may perform arbitrary system changes outside of the security
sandbox that snaps are usually confined to, which may put your system at
risk.
If you understand and want to proceed repeat the command including
--classic.
Finally, download latest tar version of ruby gems here:
https://rubygems.org/pages/download
Unzip and cd to the folder and finally type in terminal:
sudo ruby setup.rb
is there any way to install Ruby 1.9.2 or 1.8.7 + Rails 3 on my debian squeeze?
You probably don't want to use RVM on a production machine. Its $PATH magic will break in non-obvious places (e.g. cron jobs), and you'll be up a creek.
You could simply build from sources and use checkinstall to create a .deb for yourself. Here's a tutorial for Ubuntu that should translate pretty well into debian.
First install rubygems, I think it's the only Debian package. Then (as Ruby gems):
rvm (install with it ruby 1.9.2, or Ruby version you want)
bundler
rails
And then you can manage application gems with Bundler.
Have you looked at railsready-debian-lenny (it is claimed to work on Squeeze too)? Don't forget to install dependencies pointed in readme.md
The steps below outlines installing Ruby On Rails as a normal user.
Check first if the user has sudo rights. To do this try executing a simple command
$sudo ls -a
[sudo] password for unlimit:
unlimit is not in the sudoers file. This incident will be reported.
If you see a message like above, you will need to add the user to the sudoer file, this can be done by
$echo 'unlimit ALL=(ALL) ALL' >> /etc/sudoers
Check if you have ruby installed. Execute the command below
$ruby -v
-[bash]: ruby:command not found
If you see something like this, this means ruby is not installed. Install it
$sudo apt-get install ruby
Install additional libraries
$sudo apt-get install build-essential
$sudo apt-get install curl
$sudo apt-get install libssl-dev
Install rvm
$curl -L get.rvm.io | bash -s stable
Set the rvm path
$source $HOME/.rvm/scripts/rvm
You should add this to the .bashrc file.
Fetch the latest rvm and reload it
$rvm get head && rvm reload
Install ruby 1.9.3
$rvm install 1.9.3 --with-openssl-dir=$HOME/.rvm.usr
I needed to install the readline lib
$sudo apt-get install libreadline-dev
Get the rails gem
$gem install rails -v 3.2.3
Check if you have rails
$rails -v
Rails 3.2.3
Get the readline package
$rvm pkg install readline
Get sqlite3
$sudo apt-get install sqlite3 libsqlite3-dev
You are all set to create your first rails app
$rails new app HelloWorld
You can find more info http://unlimit.in/installing-ruby-on-rails-on-debian.html
The best way to install Ruby and any Gems you like is with RVM. It will compile the latest version of Ruby for you and give you tools to manage gemsets.
Relying on the distribution's packages is usually a bad idea, because they are typically out-of-date.
I am getting the following error:
$script/console
Loading development environment (Rails 2.2.2)
/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/1.8/irb/completion.rb:10:in `require': no such file to load -- readline (LoadError)
Where can i get the file and what directory should it go in?
Thanks!
The readline module is normally part of the Ruby package itself.
Did you manually build your Ruby install? If so, you want to make sure libreadline and its headers are installed, and build again.
On Debian/Ubuntu:
apt-get install libreadline-dev
Or on RHEL/CentOS, try
yum install readline-devel
Update:
You are using a very old release of Ubuntu. If you want to keep using it, open /etc/apt/sources.list in a text editor, and change all occurrences of archive.ubuntu.com to old-releases.ubuntu.com. Then, run apt-get update and try the above again.
I urge you to consider updating your installation, though. Ubuntu 7.10 hasn't seen security updates in quite a while, and using it in production is not recommended. Even if it's not a production machine, there's a good chance you'll run into further problems because of old versions of certain libraries/dependencies.
You need to install the ncurses and readline libraries.
On Ubunutu you could do
sudo apt-get install libreadline5-dev libncurses5-dev
and then you will have to recompile readline which comes with your ruby source
cd <ruby-src-dir>/ext/readline
ruby extconf.rb
make
sudo make install
If you are using RVM you could simply do
rvm package install readline
EDIT:
On newer RVM versions, this last command is
rvm pkg install readline
Add the following line to your Gemfile and run bundle update
gem 'rb-readline'
credits to similar question/answer at install ruby 1.9.3 using rvm on ubuntu
This easiest way to get relief from this problem,
just add to your Gemfile:
gem 'rb-readline'
And then run bundle install
Run the command
rvm requirements
It shows the requirements and dependencies. Install those and reinstall the ruby on rvm
rvm remove 1.9.2
rvm install 1.9.2
It works!
EDIT
If you can't find the requirements option update your rvm.
rvm update --head # older rvm
or use rvm upgrade
Maybe this is a bullshit answer, but I ran into this problem today after upgrading postgres from 9.5.3 to 9.6, along with which homebrew upgraded readline from 6.something to 7. I ended up rolling back my postgres to 9.5.3 and that resolved the issue.