{"id":453,"date":"2017-02-07T03:17:52","date_gmt":"2017-02-06T20:17:52","guid":{"rendered":"http:\/\/www.rickyadams.com\/wp\/?p=453"},"modified":"2017-02-08T07:18:39","modified_gmt":"2017-02-08T00:18:39","slug":"linux-script-to-autostart-a-task-if-not-running","status":"publish","type":"post","link":"https:\/\/www.rickyadams.com\/wp\/linux-script-to-autostart-a-task-if-not-running\/","title":{"rendered":"Linux Script to Autostart a Background Process if not running"},"content":{"rendered":"<pre># start a background process if it is not running, can also use in cron to check every hour or so\r\n<code><span class=\"com\">#!\/bin\/sh\r\n   <\/span><\/code><code><span class=\"kwd\">if<\/span><span class=\"pln\"> ! ps <\/span><span class=\"pun\">-<\/span><span class=\"pln\">elf <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> grep <\/span><span class=\"pun\">-<\/span><span class=\"pln\">v grep <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> grep processname<\/span> <span class=\"pun\">;<\/span> <span class=\"kwd\">then\r\n   <\/span><\/code><code><span class=\"pun\">python <\/span><span class=\"pln\">processname<\/span><span class=\"pun\">.<\/span><span class=\"pln\">py <\/span><span class=\"pun\">&gt;&gt;<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">home<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">user<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">bin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">spooler<\/span><span class=\"pun\">.<\/span><span class=\"pln\">log <\/span><span class=\"pun\">&amp;<\/span> <\/code>\r\n<code>##        <span class=\"com\">#mailing program<\/span>\r\n##        <span class=\"pun\">\/<\/span><span class=\"pln\">home<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">user<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">bin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">simplemail<\/span><span class=\"pun\">.<\/span><span class=\"pln\">php <\/span><span class=\"str\">\"Print spooler was not running...  Restarted.\"<\/span> \r\n<span class=\"kwd\">fi<\/span><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p># start a background process if it is not running, can also use in cron to check every hour or so #!\/bin\/sh if ! ps -elf | grep -v grep | grep processname ; then python processname.py &gt;&gt; \/home\/user\/bin\/spooler.log &amp; ## #mailing program ## \/home\/user\/bin\/simplemail.php &#8220;Print spooler was not running&#8230; Restarted.&#8221; fi<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-453","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/posts\/453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/comments?post=453"}],"version-history":[{"count":6,"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/posts\/453\/revisions"}],"predecessor-version":[{"id":459,"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/posts\/453\/revisions\/459"}],"wp:attachment":[{"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/media?parent=453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/categories?post=453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rickyadams.com\/wp\/wp-json\/wp\/v2\/tags?post=453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}