Hope someone can help, I've been pulling my hair out with this one...
I've written a shell script that does a sanity check on our quite extensive Nagios configuration for anything that needs cleaning up but wouldn't make the Nagios daemon necessarily bork or complain.
One section of the script checks our Nagios 'services' configuration, the definition of these services are spread across multiple config files and are laid out something like this...
Code:
define service{
use generic-service ; Name of service template to use
hostgroup_name liv_citrix_group,lon_citrix_group,liv_exchange_group,lon_exchange_group
service_description CPU Loading
is_volatile 0
check_period 24x7
max_check_attempts 2
normal_check_interval 10
retry_check_interval 1
contact_groups t2-admins,t2-mgrs
notification_interval 120
notification_period t2hours
notification_options w,c
check_command ctx_cpu_snmp!comstring 75 85
process_perf_data 1
}
All definitions for each 'service' are each wrapped in;
Code:
define service{
}
I'm using awk to parse these service definitions and I'm attempting to pulling out 4 lines from each definition and print out each with $1 removed in a '~' separated string, e.g.
Code:
CPU Loading~liv_citrix_group,lon_citrix_group~t2-admins,t2-mgrs~ctx_cpu_snmp!comstring 75 85
Thing is that these 4 lines aren't always in the same order within the braces and this is the cause of my woes.
The awk statement I wrote is;
...where "$services" is the output of cat'ing all the services config files.
My awk isn't reliable as it isn't coping with these 4 lines being in different orders and some of the strings being printed are wrong (e.g. a string beginning with a "service_description" from one definition ends in a "check_command" from the next definition in the config file).
So my plea is for someone to point out where I'm going wrong because I've reached my awk limits and copious amounts of RTFM'ing isn't coming up with the answers.
I've gone the route of your 3rd example were I'm conditionally printing the string on the closing brace and notice that you've quite sensibly chosen to use an array of variables. I've changed it slightly so the print occurs when a line ends with the closing brace instead of beginning and ending with a brace, just in case any definitions added in the future are formatted differently.
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