Linux

Currently doing some work on logstash and found myself wanting to delete indexes over a certain age. The following PHP script gets the job done. I use php as my primary command line scripting language so use or port as interested. #!/usr/bin/php <?php date_default_timezone_set(“America/Chicago”); $index_name = “logstash-“; $purge_age = 300; $elastic = “http://elastic.domain.com:9200”; $data = file_get_contents(“${elastic}/_cat/indices/${index_name}*”); foreach(split(“\n”, $data) as $line) { $split = preg_split(“/\s+/”, $line); if(count($split) > 1) { $date = preg_replace(“/${index_name}|\./”, “”, $split[2]); $split[] = floor((time() – strtotime($date)) /…

Last night I found myself desperate to read the output of tail but looking for specific content. (Basically tailing a log file and needing to have the fields pop out at me.) There’s no easy colorize command in linux so I did some digging, found something similar and modified it. (This is based on Kenny Moen’s blog entry about baretail on unix.) Anyway, the following perl script will allow any content to be highlighted using a simple regex and a…