gem:tldr:636e2

gem: Install specific version of a gem.

$ gem install ${gemname} --version ${1-0-0}

try on your machine

The command gem install ${gemname} --version ${1-0-0} is used to install a specific version of a gem (Ruby library) in a Ruby project.

Here's a breakdown of what each part of the command does:

gem install: This is the base command used to install Ruby gems.
${gemname}: This is a placeholder for the name of the gem you want to install. You need to replace ${gemname} with the actual name of the gem. For example, if you want to install the gem called "mygem", you would replace ${gemname} with mygem.
--version: This option allows you to specify the version of the gem you want to install.
${1-0-0}: This is another placeholder representing the specific version number you want to install. You need to replace ${1-0-0} with the actual version number you want. For example, if you want to install version 1.0.0 of the gem, you would replace ${1-0-0} with 1.0.0.

So the overall command would be something like: gem install mygem --version 1.0.0, assuming you want to install version 1.0.0 of the "mygem" gem.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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