{"id":962,"date":"2010-12-16T02:31:58","date_gmt":"2010-12-15T17:31:58","guid":{"rendered":"http:\/\/peta.okechan.net\/blog\/?p=962"},"modified":"2010-12-16T02:45:03","modified_gmt":"2010-12-15T17:45:03","slug":"dd%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e3%81%ae%e3%83%a9%e3%83%83%e3%83%91%e3%83%bc%e3%80%8cpydd%e3%80%8d%e3%82%92python%e3%81%a7%e6%9b%b8%e3%81%84%e3%81%a6%e3%81%bf%e3%81%9f","status":"publish","type":"post","link":"https:\/\/peta.okechan.net\/blog\/archives\/962","title":{"rendered":"dd\u30b3\u30de\u30f3\u30c9\u306e\u30e9\u30c3\u30d1\u30fc\u300cpydd\u300d\u3092Python\u3067\u66f8\u3044\u3066\u307f\u305f"},"content":{"rendered":"<p><a href=\"http:\/\/el.jibun.atmarkit.co.jp\/rails\/2010\/12\/ddddrruby-4ce9.html\" target=\"_blank\">dd\u30b3\u30de\u30f3\u30c9\u306e\u30e9\u30c3\u30d1\u30fc\u300cddr\u300d\u3092Ruby\u3067\u66f8\u3044\u3066\u307f\u305f<\/a><br \/>\n<a href=\"http:\/\/blog.livedoor.jp\/dankogai\/archives\/51561608.html\" target=\"_blank\">perl &#8211; \u8eca\u8f2a\u306e\u518d\u767a\u660e &#8211; dd\u30b3\u30de\u30f3\u30c9\u306e\u30e9\u30c3\u30d1\u30fcddp<\/a><br \/>\n\uff08\u306a\u3093\u304b\u5f3e\u3055\u3093\u306e\u306f\u3001if\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u30b5\u30a4\u30ba\u304c\u53d6\u5f97\u3067\u304d\u306a\u3044\u30d5\u30a1\u30a4\u30eb\u3001\u4f8b\u3048\u3070&#8221;\/dev\/urandom&#8221;\u3068\u304b\u3092\u6e21\u3059\u3068\u9032\u6357\u306e\u8868\u793a\u304c\u304a\u304b\u3057\u304f\u306a\u308b\uff09<\/p>\n<p>\u89e6\u767a\u3055\u308c\u3066\u66f8\u3044\u3066\u307f\u305f\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\n#!\/usr\/bin\/env python\r\n\r\n'''\r\ndd command wrapper\r\n'''\r\n\r\nimport sys, os, time\r\nfrom subprocess import Popen, PIPE\r\nfrom signal import SIGUSR1, SIGINFO\r\nfrom select import select\r\nimport humansize\r\n\r\ninterval = 0.1\r\n\r\nif 'linux' in os.uname()&#x5B;0].lower():\r\n\tSIGPROGRESS = SIGUSR1\r\nelse:\r\n\tSIGPROGRESS = SIGINFO\r\n\r\nif __name__ == '__main__':\r\n\tdd = Popen(&#x5B;'dd'] + sys.argv&#x5B;1:], stderr = PIPE)\r\n\twhile dd.poll() is None:\r\n\t\tdd.send_signal(SIGPROGRESS)\r\n\t\ttime.sleep(interval)\r\n\t\tinfo = select((dd.stderr, ), (), (), 0)&#x5B;0]\r\n\t\tif info:\r\n\t\t\tfor i in xrange(3):\r\n\t\t\t\tline = info&#x5B;0].readline()\r\n\t\t\t\tif 'bytes transferred' in line:\r\n\t\t\t\t\tb = int(line.split()&#x5B;0])\r\n\t\t\t\t\tprint '\\t', humansize.approximate_size(b, False), '   \\r',\r\n\t\t\t\t\tbreak\r\n\tprint\r\n\tdd.communicate()\r\n\tsys.exit(dd.returncode)\r\n<\/pre>\n<p>Mac OS X + Python2.7\u3067\u3057\u304b\u30c6\u30b9\u30c8\u3057\u3066\u307e\u305b\u3093\u3002<br \/>\n\u9032\u6357\u72b6\u6cc1\u3092\u30d1\u30fc\u30bb\u30f3\u30c8\u8868\u793a\u3059\u308b\u306b\u306f\u3001\u6700\u7d42\u7684\u306a\u30b5\u30a4\u30ba\u3092\u77e5\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6700\u7d42\u7684\u306a\u30b5\u30a4\u30ba\u3092\u77e5\u308b\u305f\u3081\u306b\u306fdd\u306ebs, count\u30d1\u30e9\u30e1\u30fc\u30bf\u304b\u3089\u8a08\u7b97\u3057\u305f\u5024\u3068if\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u6307\u5b9a\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u3088\u308a\u5c0f\u3055\u3044\u65b9\u3092\u8abf\u3079\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u307e\u305f\u60f3\u5b9a\u3057\u304d\u308c\u3066\u306a\u3044\u72b6\u6cc1\u3082\u3042\u308b\u304b\u3082\u3057\u308c\u305a\u9762\u5012\u306a\u306e\u3067\u3001\u8ee2\u9001\u3057\u305f\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3060\u3051\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u307e\u3059\u3002<br \/>\nhumansize\u3060\u3051\u6a19\u6e96\u30e2\u30b8\u30e5\u30fc\u30eb\u3058\u3083\u306a\u3044\u306e\u3067\u3001\u5225\u9014 <a href=\"http:\/\/diveintopython3-ja.rdy.jp\/examples\/humansize.py\" target=\"_blank\">http:\/\/diveintopython3-ja.rdy.jp\/examples\/humansize.py<\/a> \u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\n\u8ee2\u9001\u3057\u305f\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3092\u898b\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u3060\u3051\u306b\u4f7f\u3063\u3066\u308b\u306e\u3067\u5fc5\u8981\u306a\u3051\u308c\u3070\u30a2\u30ec\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4eca\u56de\u30cf\u30de\u3063\u305f\u3068\u3053\u308d<br \/>\nsubprocess.Popen\u306estdout\u3068stderr\u3092\u975e\u540c\u671f\u3067\u8aad\u307f\u8fbc\u3080\u5834\u5408\u3001\u4f8b\u3048\u3070\u307e\u30603\u884c\u3057\u304b\u51fa\u529b\u3055\u308c\u3066\u306a\u3044\u306e\u306b\u8aad\u307f\u8fbc\u307f\u3059\u304e\u308b\uff08\u4eca\u56de\u306e\u4f8b\u3067\u306fread\u30e1\u30bd\u30c3\u30c9\u3068\u304breadlines\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3060\u3051\u3067\u3001\u307e\u305freadline\u30e1\u30bd\u30c3\u30c9\u3092EOF\u3092\u691c\u51fa\u3059\u308b\u307e\u3067\u30eb\u30fc\u30d7\u3067\u4f7f\u3046\u3060\u3051\u3067\u305d\u3046\u306a\u308a\u307e\u3059\uff09\u3068\u3001\u5b50\u30d7\u30ed\u30bb\u30b9\uff08\u4eca\u56de\u306e\u5834\u5408\u306fdd\uff09\u304c\u7d42\u308f\u308b\u307e\u3067\u305d\u3053\u3067\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3057\u307e\u3044\u975e\u540c\u671f\u3067\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br \/>\n\u3053\u306e\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u3001select\u3092\u4f7f\u3044\u3001\u672a\u51fa\u529b\u306e\u72b6\u614b\u306estderr\u3092read\u3057\u3066\u3057\u307e\u3046\u4e8b\u3068\u3001for i in xrange(3): \u306e\u6240\u3067\u8aad\u307f\u8fbc\u307f\u3059\u304e\u308b\u4e8b\u3092\u56de\u907f\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3057\u304b\u3057\u306a\u3093\u304b\u3082\u3063\u3068\u3044\u3044\u65b9\u6cd5\u304c\u3042\u308b\u3093\u3058\u3083\u3042\u308b\u307e\u3044\u304b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p><a href=\"http:\/\/el.jibun.atmarkit.co.jp\/rails\/2010\/12\/ddddrruby-4ce9.html\" target=\"_blank\">dd\u30b3\u30de\u30f3\u30c9\u306e\u30e9\u30c3\u30d1\u30fc\u300cddr\u300d\u3092Ruby\u3067\u66f8\u3044\u3066\u307f\u305f<\/a><br \/>\n<a href=\"http:\/\/blog.livedoor.jp\/dankogai\/archives\/51561608.html\" target=\"_blank\">perl &#8211; \u8eca\u8f2a\u306e\u518d\u767a\u660e &#8211; dd\u30b3\u30de\u30f3\u30c9\u306e\u30e9\u30c3\u30d1\u30fcddp<\/a><br \/>\n\uff08\u306a\u3093\u304b\u5f3e\u3055\u3093\u306e\u306f\u3001if\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u30b5\u30a4\u30ba\u304c\u53d6\u5f97\u3067\u304d\u306a\u3044\u30d5\u30a1\u30a4\u30eb\u3001\u4f8b\u3048\u3070&#8221;\/dev\/urandom&#8221;\u3068\u304b\u3092\u6e21\u3059\u3068\u9032\u6357\u306e\u8868\u793a\u304c\u304a\u304b\u3057\u304f\u306a\u308b\uff09<\/p>\n<p>\u89e6\u767a\u3055\u308c\u3066\u66f8\u3044\u3066\u307f\u305f\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\n#!\/usr\/bin\/env python\r\n\r\n'''\r\ndd command wrapper\r\n'''\r\n\r\nimport sys, os, time\r\nfrom subprocess import Popen, PIPE\r\nfrom signal import SIGUSR1, SIGINFO\r\nfrom select import select\r\nimport humansize\r\n\r\ninterval = 0.1\r\n\r\nif 'linux' in os.uname()&#x5B;0].lower():\r\n\tSIGPROGRESS = SIGUSR1\r\nelse:\r\n\tSIGPROGRESS = SIGINFO\r\n\r\nif __name__ == '__main__':\r\n\tdd = Popen(&#x5B;'dd'] + sys.argv&#x5B;1:], stderr = PIPE)\r\n\twhile dd.poll() is None:\r\n\t\tdd.send_signal(SIGPROGRESS)\r\n\t\ttime.sleep(interval)\r\n\t\tinfo = select((dd.stderr, ), (), (), 0)&#x5B;0]\r\n\t\tif info:\r\n\t\t\tfor i in xrange(3):\r\n\t\t\t\tline = info&#x5B;0].readline()\r\n\t\t\t\tif 'bytes transferred' in line:\r\n\t\t\t\t\tb = int(line.split()&#x5B;0])\r\n\t\t\t\t\tprint '\\t', humansize.approximate_size(b, False), '   \\r',\r\n\t\t\t\t\tbreak\r\n\tprint\r\n\tdd.communicate()\r\n\tsys.exit(dd.returncode)\r\n<\/pre>\n<p>Mac OS X + Python2.7\u3067\u3057\u304b\u30c6\u30b9\u30c8\u3057\u3066\u307e\u305b\u3093\u3002<br \/>\n\u9032\u6357\u72b6\u6cc1\u3092\u30d1\u30fc\u30bb\u30f3\u30c8\u8868\u793a\u3059\u308b\u306b\u306f\u3001\u6700\u7d42\u7684\u306a\u30b5\u30a4\u30ba\u3092\u77e5\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6700\u7d42\u7684\u306a\u30b5\u30a4\u30ba\u3092\u77e5\u308b\u305f\u3081\u306b\u306fdd\u306ebs, count\u30d1\u30e9\u30e1\u30fc\u30bf\u304b\u3089\u8a08\u7b97\u3057\u305f\u5024\u3068if\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u6307\u5b9a\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u3088\u308a\u5c0f\u3055\u3044\u65b9\u3092\u8abf\u3079\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u307e\u305f\u60f3\u5b9a\u3057\u304d\u308c\u3066\u306a\u3044\u72b6\u6cc1\u3082\u3042\u308b\u304b\u3082\u3057\u308c\u305a\u9762\u5012\u306a\u306e\u3067\u3001\u8ee2\u9001\u3057\u305f\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3060\u3051\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u307e\u3059\u3002<br \/>\nhumansize\u3060\u3051\u6a19\u6e96\u30e2\u30b8\u30e5\u30fc\u30eb\u3058\u3083\u306a\u3044\u306e\u3067\u3001\u5225\u9014 <a href=\"http:\/\/diveintopython3-ja.rdy.jp\/examples\/humansize.py\" target=\"_blank\">http:\/\/diveintopython3-ja.rdy.jp\/examples\/humansize.py<\/a> \u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\n\u8ee2\u9001\u3057\u305f\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3092\u898b\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u3060\u3051\u306b\u4f7f\u3063\u3066\u308b\u306e\u3067\u5fc5\u8981\u306a\u3051\u308c\u3070\u30a2\u30ec\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4eca\u56de\u30cf\u30de\u3063\u305f\u3068\u3053\u308d<br \/>\nsubprocess.Popen\u306estdout\u3068stderr\u3092\u975e\u540c\u671f\u3067\u8aad\u307f\u8fbc\u3080\u5834\u5408\u3001\u4f8b\u3048\u3070\u307e\u30603\u884c\u3057\u304b\u51fa\u529b\u3055\u308c\u3066\u306a\u3044\u306e\u306b\u8aad\u307f\u8fbc\u307f\u3059\u304e\u308b\uff08\u4eca\u56de\u306e\u4f8b\u3067\u306fread\u30e1\u30bd\u30c3\u30c9\u3068\u304breadlines\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3060\u3051\u3067\u3001\u307e\u305freadline\u30e1\u30bd\u30c3\u30c9\u3092EOF\u3092\u691c\u51fa\u3059\u308b\u307e\u3067\u30eb\u30fc\u30d7\u3067\u4f7f\u3046\u3060\u3051\u3067\u305d\u3046\u306a\u308a\u307e\u3059\uff09\u3068\u3001\u5b50\u30d7\u30ed\u30bb\u30b9\uff08\u4eca\u56de\u306e\u5834\u5408\u306fdd\uff09\u304c\u7d42\u308f\u308b\u307e\u3067\u305d\u3053\u3067\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3057\u307e\u3044\u975e\u540c\u671f\u3067\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br \/>\n\u3053\u306e\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u3001select\u3092\u4f7f\u3044\u3001\u672a\u51fa\u529b\u306e\u72b6\u614b\u306estderr\u3092read\u3057\u3066\u3057\u307e\u3046\u4e8b\u3068\u3001for i in xrange(3): \u306e\u6240\u3067\u8aad\u307f\u8fbc\u307f\u3059\u304e\u308b\u4e8b\u3092\u56de\u907f\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3057\u304b\u3057\u306a\u3093\u304b\u3082\u3063\u3068\u3044\u3044\u65b9\u6cd5\u304c\u3042\u308b\u3093\u3058\u3083\u3042\u308b\u307e\u3044\u304b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[60],"class_list":["post-962","post","type-post","status-publish","format-standard","hentry","category-tech","tag-python"],"_links":{"self":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/comments?post=962"}],"version-history":[{"count":0,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/962\/revisions"}],"wp:attachment":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/media?parent=962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/categories?post=962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/tags?post=962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}