Please do not report bugs you encounter while using your homebuilt Rubies to the Debian team Rubies built by yourself are not supported. Ruby Version Manager, often abbreviated as RVM, The entire Ruby environment, including the Ruby interpreter, installed RubyGems, and documentation, is. While ruby-build is a great tool to build Ruby versions that are not available via APT, you should still use the Debian-packaged versions of Ruby whenever possible since they are tested and supported by the Debian community. On this page youll find a list of Ruby versions with the most important changes since Ruby 2.0.CVE CVE-2019-15845: A NUL injection vulnerability of File.fnmatch. CVE CVE-2019-16254: HTTP response splitting in WEBrick (Additiona. Note, however, what's written in the package README.Debian file: CVE CVE-2019-16255: A code injection vulnerability of Shell an. You can use the ruby-build package to install Ruby interpreters that are not available in Debian. Installing Ruby versions not packaged in Debian 2.4.2 Popular tools to help you manage your Ruby version are: Ruby Version Manager (RVM) rbenv Let’s look at RVM. After you start a new shell, you will be able to switch the default ruby back and forth: It looks like it didn't work, but that's because the current shell already cached /usr/bin/ruby as the location of "ruby". $ echo 'eval "$(rbenv init -)"' > ~/.bash_profile # or ~/.bashrc, depends on your setup To select the default Ruby for a given user account, you should use the rbenv package: Note: the instructions here use the command "rbenv alternatives", which is not available in Debian jessie. Selecting the default Ruby interpreter on a per-user basis (wheezy) 1 If ruby -v shows 2.6.3, then you are using the ruby which ships with the system by default. Update-alternatives: using /usr/bin/gem1.8 to provide /usr/bin/gem (gem) in auto mode. Update-alternatives: using /usr/bin/ruby1.8 to provide /usr/bin/ruby (ruby) in auto mode. Update-alternatives: using /usr/bin/ruby1.9.1 to provide /usr/bin/ruby (ruby) in manual mode. Update-alternatives: using /usr/bin/gem1.9.1 to provide /usr/bin/gem (gem) in manual mode. This needs to be done as root (or with sudo). ![]() To select the default Ruby interpreter on a system-wide basis, you can use the ruby-switch package. You can view the commands available by typing. Selecting the default Ruby interpreter system-wide (wheezy only) There are a few different ways to list RVM installed rubies. But when you change "ruby", you probably also want to change the default "gem", "irb", etc, so there are shortcuts to changing all of those at once. It's possible to switch between different Ruby interpreters as the default "ruby" program by using update-alternatives. Work in progress, not actually available yet
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