{"published":"2007-08-24 20:23:34","url":"https://boxnos.hatenablog.com/entry/20070824/1187954614","author_url":"https://blog.hatena.ne.jp/tanakaBox/","title":" bc\u30e1\u30e2\u3002","description":"\u30b3\u30f3\u30bd\u30fc\u30eb\u7528\u96fb\u5353\u304c\u6b32\u3057\u304f\u306a\u3063\u3066\u304d\u305f\u306e\u3067\u3001bc\u3092\u8a66\u3057\u3066\u307f\u305f\u3002 \u306f\u3058\u3081\u3066\u306ebc % bc -q 1 + 2 3 obase = 2 2 ^ 10 10000000000 ibace = 8 755 1011110011 quit ibase,obase\u3067\u57fa\u6570\u306e\u5909\u66f4\u304c\u51fa\u6765\u308b\u3002 man\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u51c4\u3044\u3063\u3059\u3002\u96fb\u5353\u306e\u57df\u3092\u9065\u304b\u306b\u8d8a\u3048\u3066\u308b\u30fb\u30fb\u30fb\u3002 2\u9032\u6570\u30c0\u30f3\u30d7 \u6628\u65e5\u306e2\u9032\u30c0\u30f3\u30d7\u3082\u30ef\u30f3\u30e9\u30a4\u30ca\u3067\u3002 % cat 123.txt 123 456 789 % (echo 'obase = 2' && cat 123.txt) | bc 1111011 111001000 1100010101\u3044\u3044\u611f\u3058\u3002\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u2026","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20070824%2F1187954614\" title=\" bc\u30e1\u30e2\u3002 - \u30dc\u30af\u30ce\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","height":"190","author_name":"tanakaBox","blog_title":"\u30dc\u30af\u30ce\u30b9","provider_url":"https://hatena.blog","blog_url":"https://boxnos.hatenablog.com/","categories":["Linux"],"type":"rich","version":"1.0","provider_name":"Hatena Blog"}