Ruby 3.0 : インストール2023/03/10

	Ruby 3.0 をインストールします。
[1]	Ruby 3.0 のインストールと動作確認です。

[root@dlp ~]#

dnf -y install ruby

Dependencies resolved.
================================================================================
 Package                 Arch        Version               Repository      Size
================================================================================
Installing:
 ruby                    x86_64      3.0.3-159.el9         appstream       42 k
Installing dependencies:
 ruby-libs               x86_64      3.0.3-159.el9         appstream      3.3 M
 rubygem-json            x86_64      2.5.1-159.el9         appstream       60 k
 rubygem-psych           x86_64      3.3.2-159.el9         appstream       60 k
Installing weak dependencies:
 ruby-default-gems       noarch      3.0.3-159.el9         appstream       46 k
 rubygem-bigdecimal      x86_64      3.0.0-159.el9         appstream       56 k
 rubygem-bundler         noarch      2.2.32-159.el9        appstream      454 k
 rubygem-io-console      x86_64      0.5.7-159.el9         appstream       27 k
 rubygem-rdoc            noarch      6.3.3-159.el9         appstream      442 k
 rubygems                noarch      3.2.32-159.el9        appstream      304 k

Transaction Summary
================================================================================
Install  10 Packages
.....
.....

[root@dlp ~]#

ruby -v

ruby 3.0.3p157 (2021-11-24 revision 3fb7d2cadc) [x86_64-linux]

# テストスクリプトを作成して動作確認

[root@dlp ~]# cat > ruby_test.rb <<'EOF' 
msg = Class.send(:new, String);
mymsg = msg.send(:new, "Hello Ruby World !\n");
STDOUT.send(:write, mymsg)
EOF

[root@dlp ~]#

ruby ruby_test.rb

Hello Ruby World !