{"id":222341,"date":"2021-07-22T09:49:05","date_gmt":"2021-07-22T01:49:05","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=222341"},"modified":"2021-07-09T13:49:34","modified_gmt":"2021-07-09T05:49:34","slug":"centos-flock-for","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/centos-flock-for.html","title":{"rendered":"Centos flock \u9632\u6b62\u811a\u672c\u91cd\u590d\u8fd0\u884c"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u5982\u679ccrontab\u8bbe\u5b9a\u4efb\u52a1\u6bcf\u5206\u949f\u6267\u884c\u4e00\u6b21\uff0c\u4f46\u6267\u884c\u7684\u4efb\u52a1\u9700\u8981\u82b1\u8d395\u5206\u949f\uff0c\u8fd9\u65f6\u7cfb\u7edf\u4f1a\u518d\u6267\u884c\u5bfc\u81f4\u4e24\u4e2a\u76f8\u540c\u7684\u4efb\u52a1\u5728\u6267\u884c\u3002\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e00\u4e9b\u5e76\u53d1\u95ee\u9898\uff0c\u4e25\u91cd\u65f6\u4f1a\u5bfc\u81f4\u51fa\u73b0\u810f\u6570\u636e\u6027\u80fd\u74f6\u9888\u7b49\u6076\u6027\u5faa\u73af\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5982\u679ccrontab\u8bbe\u5b9a\u4efb\u52a1\u6bcf\u5206\u949f\u6267\u884c\u4e00\u6b21\uff0c\u4f46\u6267\u884c\u7684\u4efb\u52a1\u9700\u8981\u82b1\u8d395\u5206\u949f\uff0c\u8fd9\u65f6\u7cfb\u7edf\u4f1a\u518d\u6267\u884c\u5bfc\u81f4\u4e24\u4e2a\u76f8\u540c\u7684\u4efb\u52a1\u5728\u6267\u884c\u3002<br \/>\n\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e00\u4e9b\u5e76\u53d1\u95ee\u9898\uff0c\u4e25\u91cd\u65f6\u4f1a\u5bfc\u81f4\u51fa\u73b0\u810f\u6570\u636e\u6027\u80fd\u74f6\u9888\u7b49\u6076\u6027\u5faa\u73af\u3002<br \/>\n\u4e3a\u4e86\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528flock\u5efa\u7acb\u6392\u5b83\u9501\u3002<\/p>\n<p><strong>\u4f8b\uff1a<\/strong><\/p>\n<pre># \/tmp\/sleeptest.sh\r\n\r\n#!\/bin\/bash\r\n# Sleep\r\n# PATH=\/bin:\/sbin:\/usr\/bin:\/usr\/sbin:\/usr\/local\/bin:\/usr\/local\/sbin:~\/bin\r\n# export PATH\r\necho \"\"\r\necho \"*****************************************\"\r\necho \"start time `date '+%Y-%m-%d %H:%M:%S'`\u00a0\u00a0 \"\r\nsleep 300s\r\necho \"finish time `date '+%Y-%m-%d %H:%M:%S'`\u00a0 \"\r\necho \"*****************************************\"\r\n<\/pre>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong><strong>\u8ba1\u5212\u4efb\u52a1<\/strong><\/strong><\/span><\/div>\n<pre># crontab -e\r\n*\/1 * * * *\u00a0 \/tmp\/sleeptest.sh &gt;&gt; \/tmp\/sleeptest.log\r\n<\/pre>\n<p><strong>\u67e5\u770b\u8fdb\u7a0b<\/strong><\/p>\n<pre>#ps aux | grep sleeptest.sh | wc -l\r\n2\r\n<\/pre>\n<p>(\u6bcf\u5206\u949f\u90fd\u4f1a\u589e\u52a0\u4e00\u4e2a\uff0c\u8bf4\u660eshell\u91cd\u590d\u6267\u884c\u4e2d)<\/p>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong><strong> flock\u9501 <\/strong><\/strong><\/span><\/div>\n<p>\u4f7f\u7528flock\u5efa\u7acb\u6392\u5b83\u9501\uff0c\u5982\u679c\u5bf9\u8fdb\u7a0b\u52a0\u4e86\u6392\u4ed6\u9501\u5176\u4ed6\u8fdb\u7a0b\u65e0\u6cd5\u52a0\u9501\uff0c<br \/>\n\u53ef\u4ee5\u9009\u62e9\u7b49\u5f85\u8d85\u65f6\u6216\u9a6c\u4e0a\u8fd4\u56de\u3002<\/p>\n<pre>flock [-sxun][-w #]\r\nflock [-sxon][-w #] file [-c] command\r\n\r\n-s, --shared:\u00a0\u00a0\u00a0 \u83b7\u5f97\u4e00\u4e2a\u5171\u4eab\u9501\r\n-x, --exclusive: \u83b7\u5f97\u4e00\u4e2a\u72ec\u5360\u9501\/\u6392\u4ed6\u9501\r\n-u, --unlock:\u00a0\u00a0\u00a0 \u79fb\u9664\u4e00\u4e2a\u9501\uff0c\u901a\u5e38\u662f\u4e0d\u9700\u8981\u7684\uff0c\u811a\u672c\u6267\u884c\u5b8c\u4f1a\u81ea\u52a8\u4e22\u5f03\u9501\r\n-n, --nonblock:\u00a0 \u5982\u679c\u6ca1\u6709\u7acb\u5373\u83b7\u5f97\u9501\uff0c\u76f4\u63a5\u5931\u8d25\u800c\u4e0d\u662f\u7b49\u5f85\r\n-w, --timeout:\u00a0\u00a0 \u5982\u679c\u6ca1\u6709\u7acb\u5373\u83b7\u5f97\u9501\uff0c\u7b49\u5f85\u6307\u5b9a\u65f6\u95f4\r\n-o, --close:\u00a0\u00a0\u00a0\u00a0 \u5728\u8fd0\u884c\u547d\u4ee4\u524d\u5173\u95ed\u6587\u4ef6\u7684\u63cf\u8ff0\u7b26\u53f7\u3002\u7528\u4e8e\u5982\u679c\u547d\u4ee4\u4ea7\u751f\u5b50\u8fdb\u7a0b\u65f6\u4f1a\u4e0d\u53d7\u9501\u7684\u7ba1\u63a7\r\n-c, --command:\u00a0\u00a0 \u5728shell\u4e2d\u8fd0\u884c\u4e00\u4e2a\u5355\u72ec\u7684\u547d\u4ee4\r\n-h, --help\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u663e\u793a\u5e2e\u52a9\r\n-V, --version:\u00a0\u00a0 \u663e\u793a\u7248\u672c\r\n-w \u7b49\u5f85\u65f6\u95f4,\u79d2\r\n<\/pre>\n<p><strong><\/p>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>\u6dfb\u52a0\u9501<\/strong><\/span><\/div>\n<p><\/strong><\/p>\n<pre>*\/1 * * * * flock -xn \/tmp\/sleeptest.lock -c \/tmp\/sleeptest.sh &gt;&gt; \/tmp\/sleeptest.log\r\n## -x \u72ec\u5360\u9501 -n \u76f4\u63a5\u5931\u8d25 \u5982\u53d1\u73b0\u88ab\u9501\u5982\u5c31\u5931\u8d25\u4e0d\u7b49\u5f85\uff0c\u9664\u975e\u89e3\u9501\u3002\r\n\r\n*\/1 * * * * flock -x -w 30 \/tmp\/sleeptest.lock -c \/tmp\/sleeptest.sh &gt;&gt; \/tmp\/sleeptest.log\r\n## \u5982\u53d1\u73b0\u88ab\u9501\u7b4930\u79d2\uff0c\u89e3\u9501\u6210\u529f\u7684\u8bdd\u5c31\u6267\u884c\u3002\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u679ccrontab\u8bbe\u5b9a\u4efb\u52a1\u6bcf\u5206\u949f\u6267\u884c\u4e00\u6b21\uff0c\u4f46\u6267\u884c\u7684\u4efb\u52a1\u9700\u8981\u82b1\u8d395\u5206\u949f\uff0c\u8fd9\u65f6\u7cfb\u7edf\u4f1a\u518d\u6267\u884c\u5bfc\u81f4\u4e24\u4e2a\u76f8\u540c\u7684\u4efb\u52a1\u5728\u6267\u884c [&hellip;]<\/p>\n","protected":false},"author":643,"featured_media":222347,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-222341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/222341","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/643"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=222341"}],"version-history":[{"count":3,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/222341\/revisions"}],"predecessor-version":[{"id":222344,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/222341\/revisions\/222344"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/222347"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=222341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=222341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=222341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}