{"id":130485,"date":"2022-03-19T08:40:30","date_gmt":"2022-03-19T00:40:30","guid":{"rendered":"http:\/\/www.idc.net\/help\/130485\/"},"modified":"2022-03-19T08:40:30","modified_gmt":"2022-03-19T00:40:30","slug":"%e5%ad%a6%e4%bc%9a%e4%bd%bf%e7%94%a8linux%e7%9a%84dot%e5%91%bd%e4%bb%a4-linux-dot-%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/130485\/","title":{"rendered":"\u5b66\u4f1a\u4f7f\u7528Linux\u7684dot\u547d\u4ee4 (linux dot \u547d\u4ee4)"},"content":{"rendered":"<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0cdot\u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u521b\u5efa\u5404\u79cd\u7c7b\u578b\u7684\u56fe\u5f62\u548c\u6587\u6863\u3002\u5982\u679c\u60a8\u662f\u4e00\u540dLinux\u7528\u6237\uff0c\u90a3\u4e48\u5b66\u4f1a\u4f7f\u7528dot\u547d\u4ee4\u5c06\u4f1a\u4f7f\u60a8\u7684\u5de5\u4f5c\u66f4\u52a0\u9ad8\u6548\u548c\u65b9\u4fbf\u3002<\/p>\n<p>\u672c\u6587\u5c06\u4ecb\u7ecd\u4ec0\u4e48\u662fdot\u547d\u4ee4\uff0c\u4ee5\u53ca\u5b83\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e2d\u4f7f\u7528\u3002\u6211\u4eec\u8fd8\u5c06\u4ecb\u7ecd\u51e0\u4e2a\u5b9e\u7528\u7684\u4f8b\u5b50\uff0c\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u638c\u63e1dot\u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<p>\u4ec0\u4e48\u662fdot\u547d\u4ee4<\/p>\n<p>dot\u547d\u4ee4\u662fGraphviz\u5de5\u5177\u5305\u4e2d\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u6765\u751f\u6210\u5404\u79cd\u7c7b\u578b\u7684\u56fe\u5f62\u548c\u6587\u6863\u3002Graphviz\u5de5\u5177\u5305\u662f\u4e00\u4e2a\u7531AT&amp;T\u5b9e\u9a8c\u5ba4\u5f00\u53d1\u7684\u5f00\u6e90\u8f6f\u4ef6\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u521b\u5efa\u590d\u6742\u7684\u56fe\u5f62\u548c\u56fe\u8868\u3002<\/p>\n<p>\u5728\u4f7f\u7528dot\u547d\u4ee4\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u5b89\u88c5Graphviz\u5de5\u5177\u5305\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u884c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b89\u88c5Graphviz\uff1a<\/p>\n<p>sudo apt-get install graphviz<\/p>\n<p>\u8fd9\u5c06\u4e0b\u8f7d\u5e76\u5b89\u88c5Graphviz\u5de5\u5177\u5305\u3002<\/p>\n<p>\u5982\u4f55\u4f7f\u7528dot\u547d\u4ee4<\/p>\n<p>\u5728\u4f7f\u7528dot\u547d\u4ee4\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u5982\u4f55\u7f16\u5199.dot\u6587\u4ef6\u3002.dot\u6587\u4ef6\u662fGraphviz\u5de5\u5177\u53ef\u4ee5\u8bc6\u522b\u7684\u6587\u4ef6\u683c\u5f0f\uff0c\u5b83\u5305\u542b\u4e86\u63cf\u8ff0\u67d0\u4e2a\u56fe\u5f62\u6216\u6587\u6863\u7684\u8bed\u8a00\u89c4\u8303\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684.dot\u6587\u4ef6\u793a\u4f8b\uff1a<\/p>\n<p>digraph G {<\/p>\n<p> A -&gt; B;<\/p>\n<p> A -&gt; C;<\/p>\n<p> B -&gt; C;<\/p>\n<p>}<\/p>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528digraph\u8bed\u53e5\u6765\u5b9a\u4e49\u4e00\u4e2a\u6709\u5411\u56fe\u5f62\u3002\u5927\u62ec\u53f7\u4e2d\u7684\u90e8\u5206\u5b9a\u4e49\u4e86\u56fe\u5f62\u7684\u5177\u4f53\u5185\u5bb9\u3002\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u4ece\u8282\u70b9A\u5230\u8282\u70b9B\u548c\u8282\u70b9C\u7684\u6709\u5411\u56fe\uff0c\u4ee5\u53ca\u4ece\u8282\u70b9B\u5230\u8282\u70b9C\u7684\u6709\u5411\u56fe\u3002<\/p>\n<p>\u5f53\u60a8\u521b\u5efa\u4e86.dot\u6587\u4ef6\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528dot\u547d\u4ee4\u6765\u751f\u6210\u76f8\u5e94\u7684\u56fe\u5f62\u6216\u6587\u6863\u3002\u4e0b\u9762\u662fdot\u547d\u4ee4\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n<p>dot -T -o <\/p>\n<\/p>\n<p>\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06\u4e0a\u9762\u7684.dot\u6587\u4ef6\u8f6c\u6362\u4e3aPNG\u683c\u5f0f\u7684\u56fe\u50cf\uff1a<\/p>\n<p>dot -Tpng example.dot -o example.png<\/p>\n<p>\u5728\u8fd9\u4e2a\u547d\u4ee4\u4e2d\uff0c-Tpng\u8868\u793a\u8f93\u51fa\u683c\u5f0f\u4e3aPNG\uff0cexample.dot\u662f\u8f93\u5165\u6587\u4ef6\u540d\uff0cexample.png\u662f\u8f93\u51fa\u6587\u4ef6\u540d\u3002<\/p>\n<p>\u5b9e\u7528\u7684\u4f8b\u5b50<\/p>\n<p>\u4e0b\u9762\u662f\u51e0\u4e2a\u5b9e\u7528\u7684\u4f8b\u5b50\uff0c\u53ef\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u4e86\u89e3\u5982\u4f55\u4f7f\u7528dot\u547d\u4ee4\uff1a<\/p>\n<p>1. \u751f\u6210\u7f51\u7edc\u62d3\u6251\u56fe<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528dot\u547d\u4ee4\u8f7b\u677e\u5730\u751f\u6210\u7f51\u7edc\u62d3\u6251\u56fe\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b.dot\u6587\u4ef6\uff1a<\/p>\n<p>digraph G {<\/p>\n<p> node1 -&gt; node2;<\/p>\n<p> node1 -&gt; node3;<\/p>\n<p> node3 -&gt; node4;<\/p>\n<p>}<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06\u8be5\u6587\u4ef6\u8f6c\u6362\u4e3aPNG\u683c\u5f0f\u7684\u56fe\u50cf\uff1a<\/p>\n<p>dot -Tpng topology.dot -o topology.png<\/p>\n<p>\u8be5\u547d\u4ee4\u5c06\u751f\u6210\u4ee5\u4e0b\u7f51\u7edc\u62d3\u6251\u56fe\uff1a<\/p>\n<p>2. \u751f\u6210\u6d41\u7a0b\u56fe<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528dot\u547d\u4ee4\u8f7b\u677e\u5730\u751f\u6210\u5404\u79cd\u7c7b\u578b\u7684\u6d41\u7a0b\u56fe\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b.dot\u6587\u4ef6\uff1a<\/p>\n<p>digraph flowchart {<\/p>\n<p> node1 [shape=box];<\/p>\n<p> node2 [shape=box];<\/p>\n<p> node3 [shape=box];<\/p>\n<p> node4 [shape=diamond];<\/p>\n<p> node1 -&gt; node2;<\/p>\n<p> node2 -&gt; node3;<\/p>\n<p> node3 -&gt; node4;<\/p>\n<p> node4 -&gt; node2;<\/p>\n<p>}<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06\u8be5\u6587\u4ef6\u8f6c\u6362\u4e3aPDF\u683c\u5f0f\u7684\u6587\u6863\uff1a<\/p>\n<p>dot -Tpdf flowchart.dot -o flowchart.pdf<\/p>\n<p>\u8be5\u547d\u4ee4\u5c06\u751f\u6210\u4ee5\u4e0b\u6d41\u7a0b\u56fe\uff1a<\/p>\n<p>3. \u751f\u6210ER\u56fe<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528dot\u547d\u4ee4\u8f7b\u677e\u5730\u751f\u6210ER\u56fe\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b.dot\u6587\u4ef6\uff1a<\/p>\n<p>digraph erdiagram {<\/p>\n<p> node1 [shape=oval];<\/p>\n<p> node2 [shape=oval];<\/p>\n<p> node3 [shape=oval];<\/p>\n<p> node4 [shape=oval];<\/p>\n<p> node5 [shape=oval];<\/p>\n<p> node1 -&gt; node2;<\/p>\n<p> node1 -&gt; node3;<\/p>\n<p> node1 -&gt; node4;<\/p>\n<p> node2 -&gt; node5;<\/p>\n<p>}<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06\u8be5\u6587\u4ef6\u8f6c\u6362\u4e3aSVG\u683c\u5f0f\u7684\u56fe\u50cf\uff1a<\/p>\n<p>dot -Tsvg erdiagram.dot -o erdiagram.svg<\/p>\n<p>\u8be5\u547d\u4ee4\u5c06\u751f\u6210\u4ee5\u4e0bER\u56fe\uff1a<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u4ec0\u4e48\u662fdot\u547d\u4ee4\u53ca\u5176\u5728Linux\u7cfb\u7edf\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5\u3002\u6211\u4eec\u8fd8\u4ecb\u7ecd\u4e86\u51e0\u4e2a\u5b9e\u7528\u7684\u4f8b\u5b50\uff0c\u4ee5\u5e2e\u52a9\u60a8\u4e86\u89e3\u5982\u4f55\u4f7f\u7528dot\u547d\u4ee4\u6765\u521b\u5efa\u5404\u79cd\u7c7b\u578b\u7684\u56fe\u5f62\u548c\u6587\u6863\u3002<\/p>\n<p><strong>\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li>linux \u600e\u4e48\u67e5\u770bsegmentation fault\u5806\u6808<\/li>\n<li>\u600e\u6837\u67e5\u770blinux\u670d\u52a1\u5668\u7684\u4f7f\u7528\u7387<\/li>\n<\/ul>\n<h3>linux \u600e\u4e48\u67e5\u770bsegmentation fault\u5806\u6808<\/h3>\n<p>gdb ExeName<\/p>\n<p>(gdb)core core.xx<\/p>\n<p>(gdb)bt<\/p>\n<p>core dump \u4e00\u822c\u662f\u5728segmentation fault\uff08\u6bb5\u9519\u8bef\uff09\u7684\u60c5\u51b5\u95f7\u731b\u4e0b\u4ea7\u751f\u7684\u6587\u4ef6\uff0c\u9700\u8981\u901a\u8fc7ulimit\u6765\u8bbe\u7f6e\u624d\u4f1a\u5f97\u5230\u7a3f\u6570\u7684\u3002\u5173\u4e8eLinux\u547d\u4ee4\u7684\u4ecb\u7ecd\uff0c\u770b\u770b\u300alinux\u5c31\u8be5\u8fd9\u4e48\u5b66\u300b\u8682\u656c\u6865\uff0c\u5177\u4f53\u5173\u4e8e\u8fd9\u4e00\u7ae0\u5730\u57403w(dot)linuxprobe\/chapter-02(dot)html.<\/p>\n<h3>\u600e\u6837\u67e5\u770blinux\u670d\u52a1\u5668\u7684\u4f7f\u7528\u7387<\/h3>\n<p>\u67e5\u770b\u7aef\u53e3\u4f7f\u7528\u60c5\u51b5\uff0c\u4f7f\u7528netstat\u547d\u4ee4\u3002<\/p>\n<p>\u67e5\u770b\u5df2\u7ecf\u8fde\u63a5\u7684\u670d\u52a1\u7aef\u53e3\uff08ESTABLISHED<\/p>\n<p>netstat -a<\/p>\n<p>\u67e5\u770b\u6240\u6709\u7684\u670d\u8d3a\u544a\u4f0f\u52a1\u7aef\u53e3\uff08LISTEN\uff0cESTABLISHED\uff09<\/p>\n<p>netstat -ap<\/p>\n<p>\u67e5\u770b8080\u7aef\u53e3\uff0c\u5219\u53ef\u4ee5\u7ed3\u5408grep\u547d\u4ee4\uff1anetstat -ap | grep 8080<\/p>\n<p>\u5982\u67e5\u770b8888\u7aef\u53e3\uff0c\u5219\u5728\u7ec8\u7aef\u4e2d\u53cb\u57cb\u8f93\u5165\uff1alsof -i:8888\u5173\u4e8eLinux\u547d\u4ee4\u7684\u4ecb\u7ecd\uff0c\u770b\u770b\u300alinux\u5c31\u7985\u643a\u8be5\u8fd9\u4e48\u5b66\u300b\uff0c\u5177\u4f53\u5173\u4e8e\u8fd9\u4e00\u7ae0\u5730\u57403w(dot)linuxprobe\/chapter-02(dot)html<\/p>\n<p>top\u770b\u4e00\u4e0b\u5c31\u77e5\u9053\u5566<\/p>\n<p>\u5173\u4e8elinux dot \u547d\u4ee4\u7684\u4ecb\u7ecd\u5230\u6b64\u5c31\u7ed3\u675f\u4e86\uff0c\u4e0d\u77e5\u9053\u4f60\u4ece\u4e2d\u627e\u5230\u4f60\u9700\u8981\u7684\u4fe1\u606f\u4e86\u5417 \uff1f\u5982\u679c\u4f60\u8fd8\u60f3\u4e86\u89e3\u66f4\u591a\u8fd9\u65b9\u9762\u7684\u4fe1\u606f\uff0c\u8bb0\u5f97\u6536\u85cf\u5173\u6ce8\u672c\u7ad9\u3002<\/p>\n<p><a href=\"http:https:\/\/idc.net\/\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u9996\u9009\u540e\u6d6a\u4e91\uff0c2H2G\u9996\u670810\u5143\u5f00\u901a\u3002<br \/>\u540e\u6d6a\u4e91\uff08www.IDC.Net\uff09\u63d0\u4f9b\u7b80\u5355\u597d\u7528\uff0c\u4ef7\u683c\u539a\u9053\u7684\u9999\u6e2f\/\u7f8e\u56fd\u4e91\u670d\u52a1\u5668\u548c\u72ec\u7acb\u670d\u52a1\u5668\u3002IDC+ISP+ICP\u8d44\u8d28\u3002ARIN\u548cAPNIC\u4f1a\u5458\u3002\u6210\u719f\u6280\u672f\u56e2\u961f15\u5e74\u884c\u4e1a\u7ecf\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0cdot\u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u521b\u5efa\u5404\u79cd\u7c7b\u578b\u7684\u56fe\u5f62\u548c\u6587\u6863\u3002\u5982\u679c\u60a8\u662f\u4e00\u540dLin [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-130485","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/130485","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=130485"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/130485\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=130485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=130485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=130485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}