{"id":210600,"date":"2023-12-22T06:31:19","date_gmt":"2023-12-21T22:31:19","guid":{"rendered":"https:\/\/www.idc.net\/help\/210600\/"},"modified":"2023-12-22T06:31:19","modified_gmt":"2023-12-21T22:31:19","slug":"linux-%e5%91%bd%e4%bb%a4%ef%bc%9add-%e8%bd%ac%e6%8d%a2%e5%b9%b6%e5%a4%8d%e5%88%b6%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/210600\/","title":{"rendered":"Linux \u547d\u4ee4\uff1add &#8211; \u8f6c\u6362\u5e76\u590d\u5236\u6587\u4ef6"},"content":{"rendered":"<p><title id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9add-%e8%bd%ac%e6%8d%a2%e5%b9%b6%e5%a4%8d%e5%88%b6%e6%96%87%e4%bb%b6-MahkOZlaHb\">Linux \u547d\u4ee4\uff1add - \u8f6c\u6362\u5e76\u590d\u5236\u6587\u4ef6<\/title><\/p>\n<h1 id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9add-%e8%bd%ac%e6%8d%a2%e5%b9%b6%e5%a4%8d%e5%88%b6%e6%96%87%e4%bb%b6-MahkOZlaHb\">Linux \u547d\u4ee4\uff1add - \u8f6c\u6362\u5e76\u590d\u5236\u6587\u4ef6<\/h1>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0cdd\u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u8f6c\u6362\u548c\u590d\u5236\u6587\u4ef6\u3002\u5b83\u53ef\u4ee5\u4ece\u4e00\u4e2a\u6587\u4ef6\u6216\u8bbe\u5907\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u5c06\u6570\u636e\u5199\u5165\u53e6\u4e00\u4e2a\u6587\u4ef6\u6216\u8bbe\u5907\u3002dd\u547d\u4ee4\u7684\u7075\u6d3b\u6027\u4f7f\u5176\u6210\u4e3a\u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u4eba\u5458\u7684\u9996\u9009\u5de5\u5177\u4e4b\u4e00\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e8%af%ad%e6%b3%95-MahkOZlaHb\">\u57fa\u672c\u8bed\u6cd5<\/h2>\n<p>dd\u547d\u4ee4\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>dd if=\u8f93\u5165\u6587\u4ef6 of=\u8f93\u51fa\u6587\u4ef6 [\u9009\u9879]<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>if<\/code>\u8868\u793a\u8f93\u5165\u6587\u4ef6\uff0c<code>of<\/code>\u8868\u793a\u8f93\u51fa\u6587\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u9009\u9879\u6765\u63a7\u5236dd\u547d\u4ee4\u7684\u884c\u4e3a\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e9%80%89%e9%a1%b9-MahkOZlaHb\">\u5e38\u7528\u9009\u9879<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684dd\u547d\u4ee4\u9009\u9879\uff1a<\/p>\n<ul>\n<li><code>bs<\/code>\uff1a\u6307\u5b9a\u6bcf\u6b21\u8bfb\u53d6\u548c\u5199\u5165\u7684\u5757\u5927\u5c0f\u3002<\/li>\n<li><code>count<\/code>\uff1a\u6307\u5b9a\u8981\u590d\u5236\u7684\u5757\u6570\u3002<\/li>\n<li><code>skip<\/code>\uff1a\u8df3\u8fc7\u8f93\u5165\u6587\u4ef6\u7684\u524d\u51e0\u4e2a\u5757\u3002<\/li>\n<li><code>seek<\/code>\uff1a\u5728\u8f93\u51fa\u6587\u4ef6\u4e2d\u8df3\u8fc7\u51e0\u4e2a\u5757\u3002<\/li>\n<li><code>iflag<\/code>\uff1a\u6307\u5b9a\u8f93\u5165\u6587\u4ef6\u7684\u6807\u5fd7\u3002<\/li>\n<li><code>oflag<\/code>\uff1a\u6307\u5b9a\u8f93\u51fa\u6587\u4ef6\u7684\u6807\u5fd7\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a4%ba%e4%be%8b-MahkOZlaHb\">\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528dd\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e5%a4%8d%e5%88%b6%e6%96%87%e4%bb%b6-MahkOZlaHb\">1. \u590d\u5236\u6587\u4ef6<\/h3>\n<p>\u8981\u590d\u5236\u4e00\u4e2a\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>dd if=\u6e90\u6587\u4ef6 of=\u76ee\u6807\u6587\u4ef6<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u8981\u5c06\u4e00\u4e2a\u540d\u4e3a<code>source.txt<\/code>\u7684\u6587\u4ef6\u590d\u5236\u5230<code>destination.txt<\/code>\uff0c\u53ef\u4ee5\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>dd if=source.txt of=destination.txt<\/code><\/pre>\n<h3 id=\"2-%e8%bd%ac%e6%8d%a2%e6%96%87%e4%bb%b6%e6%a0%bc%e5%bc%8f-MahkOZlaHb\">2. \u8f6c\u6362\u6587\u4ef6\u683c\u5f0f<\/h3>\n<p>dd\u547d\u4ee4\u8fd8\u53ef\u4ee5\u7528\u4e8e\u8f6c\u6362\u6587\u4ef6\u7684\u683c\u5f0f\u3002\u4f8b\u5982\uff0c\u8981\u5c06\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u8f6c\u6362\u4e3a\u5927\u5199\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>dd if=source.txt of=destination.txt conv=ucase<\/code><\/pre>\n<p>\u8fd9\u5c06\u628a<code>source.txt<\/code>\u4e2d\u7684\u6587\u672c\u8f6c\u6362\u4e3a\u5927\u5199\uff0c\u5e76\u5c06\u7ed3\u679c\u5199\u5165<code>destination.txt<\/code>\u3002<\/p>\n<h3 id=\"3-%e5%88%9b%e5%bb%ba%e7%a9%ba%e6%96%87%e4%bb%b6-MahkOZlaHb\">3. \u521b\u5efa\u7a7a\u6587\u4ef6<\/h3>\n<p>\u8981\u521b\u5efa\u4e00\u4e2a\u6307\u5b9a\u5927\u5c0f\u7684\u7a7a\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>dd if=\/dev\/zero of=emptyfile bs=1M count=10<\/code><\/pre>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a10MB\u7684\u7a7a\u6587\u4ef6<code>emptyfile<\/code>\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-MahkOZlaHb\">\u603b\u7ed3<\/h2>\n<p>dd\u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u8f6c\u6362\u548c\u590d\u5236\u6587\u4ef6\u3002\u5b83\u5728Linux\u7cfb\u7edf\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u5e76\u4e14\u5177\u6709\u5f88\u591a\u7075\u6d3b\u7684\u9009\u9879\u3002\u65e0\u8bba\u662f\u590d\u5236\u6587\u4ef6\u3001\u8f6c\u6362\u6587\u4ef6\u683c\u5f0f\u8fd8\u662f\u521b\u5efa\u7a7a\u6587\u4ef6\uff0cdd\u547d\u4ee4\u90fd\u53ef\u4ee5\u80dc\u4efb\u3002\u5982\u679c\u4f60\u662f\u4e00\u4e2a\u7cfb\u7edf\u7ba1\u7406\u5458\u6216\u5f00\u53d1\u4eba\u5458\uff0c\u6211\u5f3a\u70c8\u63a8\u8350\u4f60\u5b66\u4e60\u548c\u638c\u63e1dd\u547d\u4ee4\u3002<\/p>\n<p>\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91\uff0c\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u670d\u52a1\u3002\u5982\u679c\u4f60\u9700\u8981\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u4e0d\u59a8\u8003\u8651\u540e\u6d6a\u4e91\u7684\u4ea7\u54c1\u3002\u4f60\u53ef\u4ee5\u5728<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a>\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u540e\u6d6a\u4e91\u7684\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u547d\u4ee4\uff1add - \u8f6c\u6362\u5e76\u590d\u5236\u6587\u4ef6 Linux \u547d\u4ee4\uff1add - \u8f6c\u6362\u5e76\u590d\u5236\u6587\u4ef6 \u5728Linux\u7cfb\u7edf\u4e2d\uff0cd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-210600","post","type-post","status-publish","format-standard","hentry","category-centos"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=210600"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210600\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=210600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=210600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=210600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}