Created
May 1, 2015 05:20
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任意の長さの英数記号パスワードを生成するshellワンライナ
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| $ cat /dev/urandom | tr -dc '0-9a-zA-Z!$%&' | fold -w 16 | head -1 | |
| a$L73NTcB&MMTzdl | |
| $ |
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tr -d パターン .... 入力からパターンに当てはまる文字を削除する
tr -dc パターン .... 入力からパターンに当てはまらない文字を削除する（-c ... 反転）
fold -w .... 指定した文字数で改行する