{"id":11,"date":"2009-03-01T17:29:08","date_gmt":"2009-03-01T06:29:08","guid":{"rendered":"http:\/\/blog.peter-johnson.com.au\/?p=7"},"modified":"2022-03-19T23:08:35","modified_gmt":"2022-03-19T12:08:35","slug":"linux-kill-process-code-fragment","status":"publish","type":"post","link":"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/","title":{"rendered":"Linux kill process code fragment"},"content":{"rendered":"<p>Small C++ source code fragment to kill a certain number of instances of a process running under Linux. For example the following sends a terminate signal to the first 999 processes with the process name Tomahawk.<\/p>\n<p>killproc(&#8220;Tomahawk&#8221;, &#8220;-TERM&#8221;, 999);<\/p>\n<pre class=\"JS sh_html sh_sourceCode\"><code><\/code><\/pre>\n<pre><pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\nint killproc(const string procname, const string killcmd, const int killcnt)\n{\n\tint proccnt = 0;\n\tconst string procdir(&quot;\/proc&quot;);\n\n\tDIR* dir = opendir(procdir.c_str());\n\tif (!dir)\n\t\treturn 0;\n\tstring searchstr = &quot;(&quot; + procname + &quot;)&quot;;\n\tstruct dirent *d;\n\twhile ((d = readdir(dir)) &amp;amp;&amp;amp; proccnt &amp;lt; killcnt)\n\t{\n\t\tstring dirname(d-&amp;amp;gt;d_name);\n\t\tif( d-&amp;gt;d_type == DT_DIR &amp;amp;&amp;amp; dirname != &quot;.&quot; &amp;amp;amp;&amp;amp;amp; dirname != &quot;..&quot; &amp;amp;amp;&amp;amp;amp; isdigit(dirname&#x5B;0]))\n\t\t{\n\t\t\tstring fn = procdir + &quot;\/&quot; + dirname + &quot;\/stat&quot;;\n\t\t\tifstream f(fn.c_str());\n\t\t\tif (f.is_open())\n\t\t\t{\n\t\t\t\tstring line;\n\t\t\t    if (getline (f, line) &amp;amp;&amp;amp; line.find(searchstr) != string::npos)\n\t\t\t    {\n\t\t\t    \tproccnt++;\n\t\t\t    \tstring procid = line.substr(0, line.find(&quot; &quot;));\n\t\t\t\t\tstring cmd = &quot;kill &quot; + killcmd + &quot; &quot; + procid;\n\t\t\t\t\tsystem(cmd.c_str());\n\t\t\t    }\n\t\t\t}\n\t\t\tf.close();\n\t\t}\n\t}\n\tclosedir(dir);\n\treturn proccnt;\n}\n<\/pre>\n<pre class=\"JS sh_html sh_sourceCode\"><code><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Small C++ source code fragment to kill a certain number of instances of a process running under Linux. For example the following sends a terminate signal to the first 999 processes with the process name Tomahawk. killproc(&#8220;Tomahawk&#8221;, &#8220;-TERM&#8221;, 999); int killproc(const string procname, const string killcmd, const int killcnt) { int proccnt = 0; const [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,8],"tags":[12,15,17],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-linux","category-programming","tag-c","tag-linux","tag-programming"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Linux kill process code fragment - Peter Johnson&#039;s Blog<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Linux kill process code fragment - Peter Johnson&#039;s Blog\" \/>\r\n<meta property=\"og:description\" content=\"Small C++ source code fragment to kill a certain number of instances of a process running under Linux. For example the following sends a terminate signal to the first 999 processes with the process name Tomahawk. killproc(&#8220;Tomahawk&#8221;, &#8220;-TERM&#8221;, 999); int killproc(const string procname, const string killcmd, const int killcnt) { int proccnt = 0; const [&hellip;]\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/\" \/>\r\n<meta property=\"og:site_name\" content=\"Peter Johnson&#039;s Blog\" \/>\r\n<meta property=\"article:published_time\" content=\"2009-03-01T06:29:08+00:00\" \/>\r\n<meta property=\"article:modified_time\" content=\"2022-03-19T12:08:35+00:00\" \/>\r\n<meta name=\"author\" content=\"Peter Johnson\" \/>\r\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\r\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Peter Johnson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/\"},\"author\":{\"name\":\"Peter Johnson\",\"@id\":\"https:\/\/blog.peter-johnson.com.au\/#\/schema\/person\/4c77aa7d5243430f95831ecb7277546c\"},\"headline\":\"Linux kill process code fragment\",\"datePublished\":\"2009-03-01T06:29:08+00:00\",\"dateModified\":\"2022-03-19T12:08:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/\"},\"wordCount\":43,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/blog.peter-johnson.com.au\/#\/schema\/person\/4c77aa7d5243430f95831ecb7277546c\"},\"keywords\":[\"C++\",\"Linux\",\"Programming\"],\"articleSection\":[\"Linux\",\"Programming\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/\",\"url\":\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/01\/linux-kill-process-code-fragment\/\",\"name\":\"Linux kill process code fragment - 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