For a church website I maintain I needed to find a way to produce graphical log data from raw log files. The web host it currently sits on does not have awstats or cPanel available, so I devised a way to pull down the logs via ftp, process them locally on a Ubuntu box and post them back up to the web host.<\/p>\n
Tools used<\/span> <\/p>\n I need to determine what the files are to retrieve and then retrieve them. To do this, ncftp has a nice feature that allows macros to be run when invoked.<\/p>\n Edit $HOME\/.netrc_template and enter the following:<\/p>\n [code]<\/p>\n machine xxx.xxx.xxx.xxx macdef displaylistbydate macdef getlogfile This does what I need. But how to programatically determine what the files to download are? The filenames will update when the logs rollover so the filenames need to be recalculated.<\/p>\n For this, an additional bash script to query the server and retrieve those files that are relevant.<\/p>\n The main shell script is as follows<\/p>\n [code]<\/p>\n #!\/bin\/bash<\/p>\n # This part gets the applicable log files from the ftp server #This part dynamically modifies the .netrc file to pull the above files exec 3<&0 echo “\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0 quit” >> $HOME\/.netrc # acutally retrieve the files # copy the log file and let awstats process the file #upload the report to the server [\/code]<\/p>\n The grep command looks for all files that aren’t archived bz2 files and follow a certain date pattern. The results from the grep are saved to a file which are then fed into the .netrc configuration file.<\/p>\n The process is to copy from a clean template “.netrc_template,” to a file called “.netrc” (which is the standard config file for ncftp). Append the text from the “files_to_get” <\/span>file. Then finish off the macro, by adding the command “quit<\/span>“.<\/p>\n genreports<\/span> calls awstats package<\/p>\n uploadstats<\/span> simply calls curl to upload to the web server<\/p>\n A bit hacky and very simple but has done the job for a number of years.<\/p>\n","protected":false},"excerpt":{"rendered":" For a church website I maintain I needed to find a way to produce graphical log data from raw log files. The web host it currently sits on does not… <\/p>\n","protected":false},"author":1,"featured_media":769,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-coding"],"_links":{"self":[{"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/posts\/420","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/comments?post=420"}],"version-history":[{"count":28,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/posts\/420\/revisions"}],"predecessor-version":[{"id":765,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/posts\/420\/revisions\/765"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/media\/769"}],"wp:attachment":[{"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/media?parent=420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/categories?post=420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alphastar.net.au\/weblog\/wp-json\/wp\/v2\/tags?post=420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nBash script
\nncftp
\ngrep<\/p>\n
\nlogin yyyyyyyy
\npassword zzzzzzzz<\/p>\n
\ncd \/logs
\nbin
\nls -l
\nquit<\/p>\n
\ncd \/logs
\nbin
\n get 2013-09-35-web.log
\nget 2013-09-36-web.log
\nget 2013-09-37-web.log<\/span>
\n<\/em>quit<\/span><\/span>
\n[\/code]<\/p>\n
\necho “\\$ displaylistbydate” | ftp -v xxx.xxx.xxx.xxx > $HOME\/sydney_logs\/all_log_files
\ngrep -v web.log.bz2 $HOME\/sydney_logs\/all_log_files | grep -o 2[0-9][0-9][0-9]-.*log >$HOME\/sydney_logs\/files_to_get<\/p>\n
\nFILE=$HOME\/sydney_logs\/files_to_get
\nif [ ! -f $FILE ]; then
\necho “$FILE : does not exists”
\nexit 1
\nelif [ ! -r $FILE ]; then
\necho “$FILE: can not read”
\nexit 2
\nfi<\/p>\n
\nexec 0<$FILE
\ncp $HOME\/.netrc_template $HOME\/.netrc
\nwhile read line
\ndo
\n# use $line variable to process line in processLine() function
\necho “\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0 get $line” >> $HOME\/.netrc
\ndone<\/p>\n
\necho “” >> $HOME\/.netrc<\/p>\n
\ncd $HOME\/sydney_logs
\necho “\\$ getlogfile” | ftp -v xxx.xxx.xxx.xxx<\/p>\n
\nexec 3<&0
\nexec 0<$FILE
\nwhile read line
\ndo
\necho “copying $line”
\ncp $line $HOME\/awstats\/mylog.log
\nperl $HOME\/awstats\/update
\ndone
\ncd $HOME\/awstats
\necho “Generating a report (may take a few mins)”
\n$HOME\/awstats\/genreports
\ncd $HOME\/sydney_logs<\/p>\n
\n.\/uploadstats<\/p>\n