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【Ruby】Gemのインストール先を確認する方法

Posted at

確認方法

次のコマンドを実行することでGemのインストール先を確認できます。

gem environment gemdir
$ gem environment gemdir
/usr/local/bundle

gemdirを除いて実行すると以下のような情報が出力される。

$ RubyGems Environment:
  - RUBYGEMS VERSION: 3.3.26
  - RUBY VERSION: 3.1.3 (2022-11-24 patchlevel 185) [aarch64-linux]
  - INSTALLATION DIRECTORY: /usr/local/bundle
  - USER INSTALLATION DIRECTORY: /home/ruby/.local/share/gem/ruby/3.1.0
  - RUBY EXECUTABLE: /usr/local/bin/ruby
  - GIT EXECUTABLE: /usr/bin/git
  - EXECUTABLE DIRECTORY: /usr/local/bundle/bin
  - SPEC CACHE DIRECTORY: /home/ruby/.local/share/gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /usr/local/etc
  - RUBYGEMS PLATFORMS:
     - ruby
     - aarch64-linux
  - GEM PATHS:
     - /usr/local/bundle
     - /home/ruby/.local/share/gem/ruby/3.1.0
     - /usr/local/lib/ruby/gems/3.1.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => true
     - :bulk_threshold => 1000
     - "install" => "--no-document"
     - "update" => "--no-document"
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/local/bundle/bin
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
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