{"id":174,"date":"2014-06-27T02:25:52","date_gmt":"2014-06-27T02:25:52","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=174"},"modified":"2014-06-27T02:25:52","modified_gmt":"2014-06-27T02:25:52","slug":"%e5%bd%bb%e5%ba%95%e5%88%a0%e9%99%a4linux%e4%b8%8b%e7%9a%84%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/174.html","title":{"rendered":"\u5f7b\u5e95\u5220\u9664Linux\u4e0b\u7684\u6587\u4ef6"},"content":{"rendered":"<p>\u5728Linux\u4e2d\u5220\u9664\u6587\u4ef6\u4e00\u822c\u4f7f\u7528rm\u547d\u4ee4\uff0c\u4f46\u662f<span style=\"color: rgb(255, 0, 0);\">rm\u547d\u4ee4\u5e76\u4e0d\u4f1a\u771f\u7684\u6e05\u7a7a\u4fdd\u5b58\u8be5\u6587\u4ef6\u7684\u6570\u636e\u5757\u7684\u5185\u5bb9\uff0c\u800c\u53ea\u662f\u91ca\u653e\u4e86\u8be5\u6587\u4ef6\u6240\u5360\u7528\u7684\u7d22\u5f15\u8282\u70b9\u548c\u6570\u636e\u5757<\/span>\u3002\u56e0\u6b64\u7528rm\u547d\u4ee4\u5220\u9664\u7684\u6587\u4ef6\u662f\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u65b9\u6cd5\u6062\u590d\u7684(\u6bd4\u5982\u53ef\u4ee5\u7528debugfs\u6062\u590d)\u3002<\/p>\n<p>\u6709\u4e9b\u65f6\u5019\u6211\u4eec\u8981\u5f7b\u5e95\u5220\u9664\u4e00\u4e9b\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528shred\u547d\u4ee4\u6765\u5b9e\u73b0\uff0cshred\u662fcoreutils\u7684\u4e00\u90e8\u5206\uff0c\u6240\u4ee5Linux\u4e2d\u57fa\u672c\u90fd\u4f1a\u6709\u8fd9\u4e2a\u547d\u4ee4\u3002<\/p>\n<p>\u4f7f\u7528shred\u547d\u4ee4\u5f7b\u5e95\u5220\u9664\u6587\u4ef6\u7684\u65b9\u6cd5\uff1a<\/p>\n<p>$ shred -u\u00a0file<\/p>\n<p>shred\u4f1a\u7528\u4e00\u4e9b\u968f\u673a\u5185\u5bb9<span style=\"color: rgb(255, 0, 0);\"><strong>\u8986\u76d6<\/strong><\/span>\u6587\u4ef6\u6240\u5728\u7684\u8282\u70b9\u548c\u6570\u636e\u5757\uff0c\u5e76\u5220\u9664\u6587\u4ef6(-u\u53c2\u6570)\u3002<\/p>\n<p>\u5982\u679c\u60f3\u6e05\u9664\u7684\u66f4\u5f7b\u5e95\u4e00\u70b9\u53ef\u4ee5\u52a0 -z \u53c2\u6570\uff0c\u610f\u601d\u662f<span style=\"color: rgb(255, 0, 0);\">\u5148\u7528\u968f\u673a\u6570\u636e\u586b\u5145\uff0c\u6700\u540e\u518d\u75280\u586b\u5145<\/span>\u3002<\/p>\n<p>$ shred -u -z file<\/p>\n<p>\u53e6\u5916shred\u8fd8\u53ef\u4ee5\u6e05\u9664\u6574\u4e2a\u5206\u533a\u6216\u78c1\u76d8\uff0c\u6bd4\u5982\u60f3\u5f7b\u5e95\u6e05\u9664\/dev\/sdb1\u5206\u533a\u7684\u5185\u5bb9\u53ef\u4ee5\u8fd9\u6837\uff1a<\/p>\n<p>$ shred \/dev\/sdb1 (\u6ce8\u610f\u4e0d\u8981\u52a0-u\u53c2\u6570)<\/p>\n<hr \/>\n<h6>shred\u547d\u4ee4\u7684\u8be6\u7ec6\u53c2\u6570\uff1a<\/h6>\n<pre class=\"lang:default decode:true \">-f, --force (\u5982\u6709\u5fc5\u8981\u7684\u8bdd)\u66f4\u6539\u6587\u4ef6\u6743\u9650\u4ee5\u5141\u8bb8\u5199\u5165\n\n-n, --iterations=N \u91cd\u5199N\u6b21\uff0c\u9ed8\u8ba4\u4e3a3\u6b21\n\n--random-source=FILE \u4ece\u6307\u5b9a\u6587\u4ef6\u968f\u673a\u8bfb\u53d6\u6570\u636e\n\n-s, --size=N \u5c06\u6587\u4ef6\u7c89\u788e\u4e3a\u56fa\u5b9a\u5927\u5c0f (\u53ef\u4f7f\u7528\u540e\u7f00\u5982K\u3001M\u3001G\u7b49)\n\n-u, --remove \u8986\u76d6\u91cd\u5199\u540e\u622a\u65ad\u5e76\u79fb\u9664\u6587\u4ef6\n\n-v, --verbose \u663e\u793a\u8be6\u7ec6\u8fdb\u5ea6\u4fe1\u606f\n\n-z, --zero - \u5728\u6700\u540e\u75280\u8986\u76d6\/\u586b\u5145\u6570\u636e\n\n--help \u663e\u793a\u5e2e\u52a9\n\n--version \u663e\u793a\u7248\u672c\u4fe1\u606f<\/pre>\n<p>&nbsp;<\/p>\n<h6>\u539f\u6587\u94fe\u63a5\uff1a<\/h6>\n<p><a href=\"http:\/\/www.linuxsong.org\/2010\/12\/shred-file\/\" target=\"_blank\">http:\/\/www.linuxsong.org\/2010\/12\/shred-file\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Linux\u4e2d\u5220\u9664\u6587\u4ef6\u4e00\u822c\u4f7f\u7528rm\u547d\u4ee4\uff0c\u4f46\u662frm\u547d\u4ee4\u5e76\u4e0d\u4f1a\u771f\u7684\u6e05\u7a7a\u4fdd\u5b58\u8be5\u6587\u4ef6\u7684\u6570\u636e\u5757\u7684\u5185\u5bb9\uff0c\u800c\u53ea\u662f\u91ca\u653e\u4e86\u8be5\u6587\u4ef6 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,25,12],"tags":[98],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-linux","category-security","category-tools","tag-shred"],"views":3358,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=174"}],"version-history":[{"count":0,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/174\/revisions"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}