Super useful info Alex! Many thanks for taking time to reply, much appreciated! Script now working nicely :) I tried to use trim but couldn't get anything useful out of it, and think I searched google for help for hours and hours but couldn't find much. I'll get the hang of it all one day. Just needed the directions of an old hat!<div> </div><div>P.S Nagios rocks!</div><div> </div><div>Cheers <div> </div><div><div> <div class="gmail_quote">On 11 April 2012 17:16, Alex Griffin <<a href="mailto:agriffin@nagios.com">agriffin@nagios.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hey Edward, I'm glad you got everything figured out! I just thought I'd leave some shell tips based on the few lines of your script that you posted. Your first pipeline can be replaced by a single awk command without losing much clarity (well, if you know awk). You also had some unnecessary quotes in your 'command' variable assignment. test=$(awk -F= '/ServerFileName/ && /HHR/ {print $2}' /tmp/updates.txt)<div class="im"> command="$check_http -v -N -H <a href="http://update.efefktdfde.co.uk" target="_blank">update.efefktdfde.co.uk</a> -u/$test" </div> If you don't know a whole lot about awk, or if it's confusing for some other reason, you can at least get rid of cat by moving the filename to grep's invocation. grep ServerFileName /tmp/updates.txt Finally, removing nasty invisible characters is a job for the tr utility. fileName=$(echo "$fileName" | tr -dc [:print:]) Alex Griffin --- Tech Team <a href="mailto:agriffin@nagios.com" target="_blank">agriffin@nagios.com</a><div class="im"> On 04/11/2012 10:20 AM, Edward Blum wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"> FIXED! With a little research and when running check_http with -v I see the line is 135 <a href="http://charactersktrace.co.uk:80/SetupHHRImporter1020.exe" target="_blank">charactersktrace.co.uk:80/SetupHHRImporter1020.exe</a> </div> <<a href="http://charactersktrace.co.uk:80/SetupHHRImporter1020.exe" target="_blank">http://charactersktrace.co.uk:80/SetupHHRImporter1020.exe</a>><div class="im"> For some reason the variable had a funny hidden character of some sort in which check_http doesn't like. I cleansed the variable with: fileName=$(echo $fileName | egrep "[a-z,A-Z,.,0-9]{1,}" -o) On 10 April 2012 23:01, Edward Blum <<a href="mailto:eddy.blum@gmail.com" target="_blank">eddy.blum@gmail.com</a> </div><div class="im"> <mailto:<a href="mailto:eddy.blum@gmail.com" target="_blank">eddy.blum@gmail.com</a>>> wrote: Hi There, I am having very strange problems creating a nagios plugin in Bash using check_http to check contents of a Amazon S3 Bucket. I am grabbing the URL of the file to grab from a txt file (changes often) inside the bucket and using awk and grep extracting the Filename. I have using the following syntax: </div> check_http -H <a href="http://myhost.com" target="_blank">myhost.com</a> <<a href="http://myhost.com/" target="_blank">http://myhost.com/</a>> -N -v -u /testing.exe<div class="im"> Now this works fine when I run from the command line it also works fine when running from the bash script. The problem lies when I try the use the variable extracted using awk. Here are the results of running my bash script : is 135 <a href="http://charactersktdfde.co.uk:80/SetupddfImporter1020.exe" target="_blank">charactersktdfde.co.uk:80/SetupddfImporter1020.exe</a> </div> <<a href="http://charactersktdfde.co.uk/SetupddfImporter1020.exe" target="_blank">http://charactersktdfde.co.uk/SetupddfImporter1020.exe</a>><div class="im"> STATUS: HTTP/1.1 400 Bad Request **** HEADER **** Transfer-Encoding: chunked Date: Tue, 10 Apr 2012 21:47:21 GMT Connection: close Server: AmazonS3 **** CONTENT **** [[ skipped ]] HTTP WARNING: HTTP/1.1 400 Bad Request - 135 bytes in 0.027 second response time |time=0.027087s;;;0.000000 size=135B;;;0 Here is what should appear: <a href="http://update.efefktdfde.co.uk:80/SetupddfImporter1020.exe" target="_blank">http://update.efefktdfde.co.uk:80/SetupddfImporter1020.exe</a> </div> <<a href="http://update.efefktdfde.co.uk/SetupddfImporter1020.exe" target="_blank">http://update.efefktdfde.co.uk/SetupddfImporter1020.exe</a>> is 1460<div class="im"> characters STATUS: HTTP/1.1 200 OK **** HEADER **** x-amz-id-2: lmJo9jgflJdp+ehTirekL19lXFY5KsNJ13UkiSWlNjiWzeYtVJ1OX7VIDZrsMNUJ x-amz-request-id: 7D72700CDF05E228 Date: Tue, 10 Apr 2012 21:47:13 GMT x-amz-meta-cb-modifiedtime: Fri, 07 Oct 2011 03:36:32 GMT Last-Modified: Mon, 24 Oct 2011 20:41:44 GMT ETag: "ca684ddfa09409f8890e8c92bc68f619" Accept-Ranges: bytes Content-Type: application/octet-stream Content-Length: 6056760 Server: AmazonS3 **** CONTENT **** [[ skipped ]] HTTP OK: HTTP/1.1 200 OK - 1460 bytes in 0.122 second response time |time=0.122165s;;;0.000000 size=1460B;;;0 In the bash script I am using the syntax: test=$(cat /tmp/updates.txt | grep ServerFileName | awk 'BEGIN{FS="="}{print $2}' | grep HHR) command="$check_http -v -N -H <a href="http://update.efefktdfde.co.uk" target="_blank">update.efefktdfde.co.uk</a> </div> <<a href="http://update.efefktdfde.co.uk/" target="_blank">http://update.efefktdfde.co.uk/</a>> -u"/"$test"<div class="im"> If I just do test=SetupddfImporter1020.exe then call command it works fine, so I would think its my variable however if I run a If statement to check if the one generating by the awk command is the same as test=SetupddfImporter1020.exe it says they are equal/ This is driving me round the bend, any help would be much appreciated!! </div> ------------------------------------------------------------------------------ Better than sec? 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