{"id":808,"date":"2020-03-06T10:49:34","date_gmt":"2020-03-06T10:49:34","guid":{"rendered":"http:\/\/www.liutianfeng.com\/?p=808"},"modified":"2020-03-06T10:49:34","modified_gmt":"2020-03-06T10:49:34","slug":"shell%e4%b8%ad0%e3%80%81%e3%80%81%e3%80%81%e3%80%81%e3%80%81%e3%80%81","status":"publish","type":"post","link":"https:\/\/www.liutianfeng.com\/?p=808","title":{"rendered":"Shell\u4e2d$0\u3001$?\u3001$!\u3001$$\u3001$*\u3001$#\u3001$@"},"content":{"rendered":"<p>\u6807\u9898\u4e2d\u7684shell\u7279\u6b8a\u53d8\u91cf\uff0c\u672c\u522b\u8868\u793a\u5982\u4e0b\u7684\u610f\u601d\uff1a<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\">$$\uff1aShell\u672c\u8eab\u7684PID\uff08ProcessID\uff0c\u5373\u811a\u672c\u8fd0\u884c\u7684\u5f53\u524d\u8fdb\u7a0bID\u53f7\uff09\r\n$!\uff1aShell\u6700\u540e\u8fd0\u884c\u7684\u540e\u53f0Process\u7684PID(\u540e\u53f0\u8fd0\u884c\u7684\u6700\u540e\u4e00\u4e2a\u8fdb\u7a0b\u7684\u8fdb\u7a0bID\u53f7)\r\n$?\uff1a\u6700\u540e\u8fd0\u884c\u7684\u547d\u4ee4\u7684\u7ed3\u675f\u4ee3\u7801\uff08\u8fd4\u56de\u503c\uff09\u5373\u6267\u884c\u4e0a\u4e00\u4e2a\u6307\u4ee4\u7684\u8fd4\u56de\u503c (\u663e\u793a\u6700\u540e\u547d\u4ee4\u7684\u9000\u51fa\u72b6\u6001\u30020\u8868\u793a\u6ca1\u6709\u9519\u8bef\uff0c\u5176\u4ed6\u4efb\u4f55\u503c\u8868\u660e\u6709\u9519\u8bef)\r\n$-\uff1a\u663e\u793ashell\u4f7f\u7528\u7684\u5f53\u524d\u9009\u9879\uff0c\u4e0eset\u547d\u4ee4\u529f\u80fd\u76f8\u540c\r\n$*\uff1a\u6240\u6709\u53c2\u6570\u5217\u8868\u3002\u5982\"$*\"\u7528\u300c\"\u300d\u62ec\u8d77\u6765\u7684\u60c5\u51b5\u3001\u4ee5\"$1 $2 \u2026 $n\"\u7684\u5f62\u5f0f\u8f93\u51fa\u6240\u6709\u53c2\u6570\uff0c\u6b64\u9009\u9879\u53c2\u6570\u53ef\u8d85\u8fc79\u4e2a\u3002\r\n$@\uff1a\u6240\u6709\u53c2\u6570\u5217\u8868\u3002\u5982\"$@\"\u7528\u300c\"\u300d\u62ec\u8d77\u6765\u7684\u60c5\u51b5\u3001\u4ee5\"$1\" \"$2\" \u2026 \"$n\" \u7684\u5f62\u5f0f\u8f93\u51fa\u6240\u6709\u53c2\u6570\u3002$@ \u8ddf$*\u7c7b\u4f3c\uff0c\u4f46\u662f\u53ef\u4ee5\u5f53\u4f5c\u6570\u7ec4\u7528\r\n$#\uff1a\u6dfb\u52a0\u5230Shell\u7684\u53c2\u6570\u4e2a\u6570\r\n$0\uff1aShell\u672c\u8eab\u7684\u6587\u4ef6\u540d\r\n$1\uff5e$n\uff1a\u6dfb\u52a0\u5230Shell\u7684\u5404\u53c2\u6570\u503c\u3002$1\u662f\u7b2c1\u53c2\u6570\u3001$2\u662f\u7b2c2\u53c2\u6570\u2026<\/code><\/pre>\n<p><strong>\u7528\u6cd5\u5206\u6790\uff1a<\/strong><\/p>\n<p>$$\uff1a\u4e00\u822c\u7528\u4e8ekill \u811a\u672c\u81ea\u8eab\u7684\u65f6\u5019\u4f7f\u7528\uff1b<\/p>\n<p>$!\uff1ashell\u540e\u53f0\u62c9\u8d77\u591a\u4e2a\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019\uff0c\u7528\u4e8e\u8bb0\u5f55\u548ckill\uff1b<\/p>\n<p>\u5176\u4ed6\u4e0d\u505a\u89e3\u91ca\u4e86\u3002<\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/www.liutianfeng.com\">liutianfeng.com<\/a> &raquo; <a href=\"https:\/\/www.liutianfeng.com\/?p=808\">Shell\u4e2d$0\u3001$?\u3001$!\u3001$$\u3001$*\u3001$#\u3001$@<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u6807\u9898\u4e2d\u7684shell\u7279\u6b8a\u53d8\u91cf\uff0c\u672c\u522b\u8868\u793a\u5982\u4e0b\u7684\u610f\u601d\uff1a $$\uff1aShell\u672c\u8eab\u7684PID\uff08ProcessID\uff0c\u5373\u811a\u672c\u8fd0\u884c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[31],"tags":[],"_links":{"self":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/808"}],"collection":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=808"}],"version-history":[{"count":1,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/808\/revisions"}],"predecessor-version":[{"id":809,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/808\/revisions\/809"}],"wp:attachment":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}