忘れるので📝
$ ruby -e "src = ('A'..'Z').to_a + ('a'..'z').to_a + ('0'..'9').to_a ; puts (0...20).map{ src[rand(src.size-1)] }.join" | pbcopy
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ruby でランダムな大文字小文字英数字を一発で生成する
Last updated at Posted at 2017-07-07
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