{"id":207506,"date":"2025-07-08T12:22:24","date_gmt":"2025-07-08T04:22:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207506\/"},"modified":"2025-07-08T12:22:24","modified_gmt":"2025-07-08T04:22:24","slug":"bash-%e8%84%9a%e6%9c%ac%e5%9c%a8-go-%e7%a8%8b%e5%ba%8f%e4%b8%ad%e8%bf%90%e8%a1%8c%e6%97%b6%e6%8c%82%e8%b5%b7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207506\/","title":{"rendered":"Bash \u811a\u672c\u5728 go \u7a0b\u5e8f\u4e2d\u8fd0\u884c\u65f6\u6302\u8d77"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> Bash \u811a\u672c\u5728 go \u7a0b\u5e8f\u4e2d\u8fd0\u884c\u65f6\u6302\u8d77<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-23 10:15:37<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u300aBash \u811a\u672c\u5728 go \u7a0b\u5e8f\u4e2d\u8fd0\u884c\u65f6\u6302\u8d77\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60Golang<\/span>\uff0c\u6216\u8005\u662f\u5bf9Golang<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6709\u4e00\u4e2a bash \u811a\u672c postinstall.sh\uff0c\u4ece\u7ec8\u7aef\u8fd0\u884c\u65f6\u53ef\u4ee5\u6b63\u5e38\u6267\u884c<\/p>\n

.\/postinstall.sh<\/pre>\n
\u8be5\u811a\u672c\u8fd0\u884c\u4e00\u5806\u547d\u4ee4\uff0c\u521b\u5efa\u76ee\u5f55\u3001chown\u3001chmod \u6587\u4ef6\u548c\u76ee\u5f55\uff0c<\/p>\n
\u811a\u672c\u672b\u5c3e\u662f<\/p>\n
echo \"done\"\nexit 0<\/pre>\n
\u5f53\u6211\u5728 go \u4e2d\u5c06\u5176\u4f5c\u4e3a exec.cmd \u8fd0\u884c\u5e76\u8c03\u7528 cmd.wait() \u51fd\u6570\u65f6\uff0c\u5b83\u6c38\u8fdc\u4e0d\u4f1a\u8fd4\u56de\u3002 <\/p>\n
\u6240\u4ee5\u6211\u4fee\u6539\u4e86\u6211\u7684\u4ee3\u7801\u4ee5\u4f7f\u7528 https:\/\/github.com\/go-cmd\/cmd \u4e2d\u7684\u5305\uff0c\u56e0\u4e3a\u6211\u5e0c\u671b\u80fd\u591f\u8bb0\u5f55\u6211\u201c\u5b9e\u65f6\u201d\u8fd0\u884c\u7684\u811a\u672c\u7684\u8f93\u51fa\uff0c\u4f46\u4e5f\u68c0\u6d4b\u4f55\u65f6\u4ed6\u4eec\u662f\u5b8c\u6574\u7684\u3002\u56e0\u6b64\uff0c\u7ecf\u8fc7\u5927\u91cf\u5de5\u4f5c\u540e\uff0c\u6211\u73b0\u5728\u53ef\u4ee5\u5c06 cmd \u7684 stdout \u8bb0\u5f55\u5230\u6211\u7684 loglevel status \u65e5\u5fd7\u8bb0\u5f55\u4e2d\uff0c\u5e76\u5c06 cmd \u7684 stderr \u8bb0\u5f55\u5230\u6211\u7684 loglevel error \u4e2d\u3002\u6211\u8fd8\u53ef\u4ee5\u4e3a\u547d\u4ee4\u8bbe\u7f6e\u8d85\u65f6\uff0c\u5e76\u5b9e\u65f6\u8bb0\u5f55\u5176\u8fdb\u5ea6\u3002 <\/p>\n
\u5bf9\u4e8e\u4e00\u4e9b\u7b80\u5355\u7684\u60c5\u51b5\uff0c\u8fd9\u4e2a\u65b0\u8fdb\u7a0b\u6309\u9884\u671f\u5de5\u4f5c\uff0c\u4f46\u662f\u5f53\u6211\u5411\u5b83\u53d1\u9001\u5927\u578b postinstall.sh \u811a\u672c\u65f6\uff0c\u5b83\u4f1a\u4e00\u76f4\u8fd0\u884c\u5230\u6700\u540e\uff0c\u7136\u540e\u6302\u8d77\uff0c\u6700\u7ec8\u8d85\u65f6\u3002\u5728\u547d\u4ee4\u884c\u4e0a\u624b\u52a8\u8fd0\u884c\u65f6\uff0c\u8be5\u8fc7\u7a0b\u9700\u8981\u51e0\u79d2\u949f\uff0c\u6211\u5c06\u8d85\u65f6\u8bbe\u7f6e\u4e3a 30 \u79d2\u3002\u65e5\u5fd7\u663e\u793a <\/p>\n
status- done<\/pre>\n
\u8fd9\u662f <\/p>\n
 \u4e4b\u524d\u7684\u4e00\u884c <\/p>\n
exit 0<\/pre>\n
 go-cmd \u5305\u7684\u6587\u6863\u663e\u793a\u4e86\u4e00\u79cd\u975e\u9501\u5b9a\u65b9\u5f0f\u6765\u544a\u8bc9\u8fdb\u7a0b\u5df2\u5b8c\u6210\uff0c\u6211\u6b63\u5728\u68c0\u67e5\uff08\u5e76\u9002\u7528\u4e8e\u6211\u7684\u6d4b\u8bd5\u7528\u4f8b\uff09\u6211\u4e5f\u5728\u68c0\u67e5 cmd.status().finished \u6807\u5fd7 (bool \uff09\u5e76\u4e14\u8fd9\u4e9b\u90fd\u6ca1\u6709\u62a5\u544a\u8be5\u8fc7\u7a0b\u5df2\u5b8c\u6210\u3002\u8fd9\u4e0e\u6211\u4ec5\u4f7f\u7528\u5185\u7f6e exec.cmd \u4e2d\u7684 cmd.wait() \u51fd\u6570\u770b\u5230\u7684\u7ed3\u679c\u76f8\u540c\uff0c\u53ea\u662f\u73b0\u5728\u6211\u53ef\u4ee5\u770b\u5230\u811a\u672c\u4e00\u76f4\u5230\u6700\u540e\uff0c\u4f46\u7531\u4e8e\u67d0\u79cd\u539f\u56e0\u4e0d\u662f\u8fd4\u56de\uff0c\u6216\u8005go\u7a0b\u5e8f\u65e0\u6cd5\u5224\u65ad\u5b83\u5df2\u7ecf\u8fd4\u56de\u3002 <\/p>\n
\u811a\u672c\u6b63\u5728\u6267\u884c\u7684\u4e00\u4e9b\u64cd\u4f5c\u662f\u542f\u52a8\u6216\u91cd\u65b0\u542f\u52a8 \/etc\/init.d \u4e2d\u7684\u670d\u52a1\uff0c\u5982\u679c\u5176\u4e2d\u4e00\u4e2a\u5728\u540e\u53f0\u542f\u52a8\u8fdb\u7a0b\uff0c\u56e0\u4e3a\u7236\u8fdb\u7a0b\u662f\u5b89\u88c5\u540e\u811a\u672c\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8fdb\u7a0b\u65e0\u6cd5\u5b8c\u5168\u542f\u52a8\u5728go\u7a0b\u5e8f\u773c\u4e2d\u5b8c\u6210\uff1f<\/p>\n
\u6216\u8005\u4efb\u4f55\u5176\u4ed6\u7c7b\u578b\u7684\u547d\u4ee4\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8fd9\u79cd\u7c7b\u578b\u7684\u884c\u4e3a\uff1f <\/p>\n
\u6211\u53ef\u80fd\u53ea\u9700\u8981\u5f00\u59cb\u5220\u9664\u811a\u672c\u7684\u4e00\u90e8\u5206\uff0c\u770b\u770b\u662f\u5426\u53ef\u4ee5\u5b8c\u6210\u5b83\uff0c\u4ee5\u7f29\u5c0f\u5bfc\u81f4\u5176\u884c\u4e3a\u4e0e\u6211\u7684\u6d4b\u8bd5\u811a\u672c\u4e0d\u540c\u7684\u539f\u56e0\uff0c\u4f46\u5b83\u5927\u7ea6\u6709 100 \u884c\uff0c\u4ee5\u53ca\u83b7\u53d6\u5c06\u811a\u672c\u5199\u5165\u8bbe\u5907\u662f\u4e00\u4e2a\u591a\u6b65\u9aa4\u7684\u8fc7\u7a0b\u3002<\/p>\n
\u6d4b\u8bd5\u811a\u672c\u7c7b\u4f3c\u4e8e<\/p>\n
#!\/bin\/bash\n\necho \"stdOut\"\nsleep 1\n>2& echo \"stdErr\"\nsleep 2\necho \"Finsihed\"\nsleep 1<\/pre>\n
\u8fd9\u6309\u9884\u671f\u5de5\u4f5c\uff08\u5f53\u9650\u5236\u4e3a 1 \u79d2\u65f6\u8d85\u65f6\uff0c\u5f53\u8d85\u65f6\u8bbe\u7f6e\u4e3a 4 \u79d2\u65f6\u663e\u793a\u5df2\u5b8c\u6210\uff09<\/p>\n
\u8fd8\u5e94\u6ce8\u610f\u8be5\u8fc7\u7a0b\u9002\u7528\u4e8e\u5176\u4ed6\u811a\u672c\u3002 \u8fd9\u662f\u6267\u884c preinstall.sh \u7684\u66f4\u65b0\u8fc7\u7a0b\u7684\u4e00\u90e8\u5206\uff0c\u7136\u540e\u4f7f\u7528\u76f8\u540c\u7684\u8fc7\u7a0b\u5bf9\u5305\u542b\u66f4\u65b0\u7684\u6587\u4ef6\u8c03\u7528 tar -xvf\uff0c\u7136\u540e\u7ee7\u7eed\u6267\u884c\u6b64\u5b89\u88c5\u540e\u811a\u672c\u3002\u56e0\u6b64\uff0c\u5927\u591a\u6570\u65f6\u5019\u6211\u7684\u8fdb\u7a0b\u6210\u529f\u68c0\u6d4b\u5230\u8fdb\u7a0b\u5df2\u9000\u51fa\uff0c\u8fd9\u53ea\u662f\u5b89\u88c5\u540e\u7684\u95ee\u9898\uff0c\u4f46\u6211\u60f3\u4e0d\u51fa\u4ec0\u4e48\u4f1a\u4f7f\u5176\u6302\u8d77\uff0c\u4f46\u4ece\u7ec8\u7aef\u8fd0\u884c\u65f6\u9000\u51fa\u6b63\u5e38\u3002 <\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u4ee5\u4e0b\u662f \u7684\u6587\u6863\uff0c\u91cd\u70b9\u662f\uff1a<\/p>\n
func (c *cmd) wait() error<\/pre>\n
wait \u7b49\u5f85\u547d\u4ee4\u9000\u51fa\u5e76\u7b49\u5f85\u4efb\u4f55\u5230 stdin \u7684\u590d\u5236\u6216\u4ece stdout \u6216 stderr \u7684\u590d\u5236\u5b8c\u6210\u3002<\/strong><\/p>\n
\u8fd9\u610f\u5473\u7740\u5b83\u5c06\u7b49\u5f85\u6240\u6709\u8fdb\u7a0b\u5173\u95ed\u76f8\u5173\u7ba1\u9053\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u7ed9\u5b9a\u8fdb\u7a0b\u9000\u51fa\u3002\u5f53\u60a8\u5728\u540e\u53f0\u542f\u52a8\u8fdb\u7a0b\u65f6\uff0c\u8fd9\u662f\u4e00\u4e2a\u95ee\u9898\uff1a<\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n
#!\/bin\/bash\nsleep 3600 &\necho \"exit\"<\/pre>\n
sleep<\/code> \u7ee7\u627f stdin\/out\/err \u5e76\u4f7f\u5b83\u4eec\u4fdd\u6301\u6253\u5f00\u72b6\u6001\u4e00\u4e2a\u5c0f\u65f6\u3002\u5b83\u5c06\u5728\u7ec8\u7aef\u4e2d\u7acb\u5373\u9000\u51fa\uff0c\u56e0\u4e3a bash \u4e0d\u5173\u5fc3\u4e5f\u4e0d\u5173\u5fc3\u7ec8\u7aef\u6253\u5f00\u4e86\u4ec0\u4e48\uff1a<\/p>\n
$ .\/testscript; echo \"returned\"\nexit\nreturned\n$<\/pre>\n
\u4f46\u662f\uff0c\u5982\u679c\u60a8\u901a\u8fc7\u7ba1\u9053\u4f20\u8f93\u5230 cat<\/code>\uff0c\u5b83\u5c06\u7b49\u5f85\u6240\u6709\u6f5c\u5728\u6570\u636e\u5b8c\u6210\uff08\u4ee5\u9632 sleep<\/code> \u51b3\u5b9a\u7a0d\u540e\u5199\u5165\u5185\u5bb9\uff09\uff0c\u800c bash \u5219\u4f9d\u6b21\u7b49\u5f85 cat<\/code>\uff1a<\/p>\n
$ .\/testscript | cat; echo \"returned\"\nexit\n(hangs for an hour)<\/pre>\n
\u60a8\u53ef\u4ee5\u901a\u8fc7\u786e\u4fdd\u4efb\u4f55\u5206\u53c9\u8fdb\u7a0b\u4e0d\u4f1a\u901a\u8fc7\u91cd\u5b9a\u5411\u5230\u5176\u4ed6\u5730\u65b9\u6765\u5199\u5165\u7ba1\u9053\u6765\u89e3\u51b3\u6b64\u95ee\u9898\uff1a<\/p>\n
#!\/bin\/bash\nsleep 3600 < \/dev\/null > \/dev\/null 2>&1 &\necho \"exit\"<\/pre>\n
\u7531\u4e8e sleep<\/code> \u4e0d\u518d\u4fdd\u6301\u7ba1\u9053\u6253\u5f00\uff0c\u56e0\u6b64\u5b83\u4f1a\u7acb\u5373\u8fd4\u56de\uff0c\u65e0\u8bba\u662f\u5728 shell \u4e2d\u8fd8\u662f\u4f7f\u7528 cmd.wait()<\/code>\uff1a<\/p>\n
$ .\/testscript | cat; echo \"Returned\"\nExit\nReturned<\/pre>\n
\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207506","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207506","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207506"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207506\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}