[RUBY] Install rbenv on Amazon Linux

Install dependent libraries

sudo yum -y install gcc
sudo yum -y install make
sudo yum -y install openssl
sudo yum -y install openssl-devel
sudo yum -y install gcc-c++
sudo yum install -y mysql-devel
sudo yum install -y readline-devel
sudo yum install -y libxml2-devel
sudo yum install -y libxslt-devel
sudo yum install -y bzip2

install git

$ sudo yum -y install git

Install rbenv

$ git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
$ exec $SHELL -l

However, rbenv install cannot be done at this rate.

$ rbenv install -v 2.6.2
rbenv: no such command `install'

If you look at help, you can see that there is no install command.

$ rbenv -h
Usage: rbenv <command> [<args>]

Some useful rbenv commands are:
   commands    List all available rbenv commands
   local       Set or show the local application-specific Ruby version
   global      Set or show the global Ruby version
   shell       Set or show the shell-specific Ruby version
   rehash      Rehash rbenv shims (run this after installing executables)
   version     Show the current Ruby version and its origin
   versions    List installed Ruby versions
   which       Display the full path to an executable
   whence      List all Ruby versions that contain the given executable

Solution

To install, you need the ruby-build plugin, so install it.

$ git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

If you look at help, you can see that install (and uninstall) has been added.

$ rbenv -h
Usage: rbenv <command> [<args>]

Some useful rbenv commands are:
   commands    List all available rbenv commands
   local       Set or show the local application-specific Ruby version
   global      Set or show the global Ruby version
   shell       Set or show the shell-specific Ruby version
   install     Install a Ruby version using ruby-build
   uninstall   Uninstall a specific Ruby version
   rehash      Rehash rbenv shims (run this after installing executables)
   version     Show the current Ruby version and its origin
   versions    List installed Ruby versions
   which       Display the full path to an executable
   whence      List all Ruby versions that contain the given executable

See `rbenv help <command>' for information on a specific command.
For full documentation, see: https://github.com/rbenv/rbenv#readme

rbenv install -v 2.6.2 will start the installation. After the installation is complete, you can check it with rbenv versions.

$ rbenv versions
* system
  2.6.2

Installation Log

The log file at the time of installation has the file name ruby-build.xxxxxxxxxxxxxxx.log It is stored under / tmp /.

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