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Rubyでファイルのmodeを確認する

Posted at
.rb
File::Stat.new(file).mode.to_s(8)
# => "100444"

そのまま File::Stat#modeを出力すると整数を返されて何がなんだかわからなくなるので to_s(8)で8進数に変換して読みましょう。

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