Definitely have little to no understanding of awk but…
/./ suppresses empty lines (records in awk speak)
the gsub looks interesting but your code just tosses syntax errors
and yes Les, the >2 /dev/null definitely redirected the awk squawk to where it belonged
Craig
On Dec 6, 2012, at 1:34 PM, m.roth@xxxxxxxxx wrote:
> You rang?
>
> Craig White wrote:
>> a little out of my comfort zone and have practically gotten what I want
>> but awk seems determined to send a message via std error which is
>> problematic and annoying. Basically trying to get a list of virtual host
>> names from nginx config files like this:
>>
>> $ awk -F" " '/./ { if ( match ( "^server_name$", $2 ) ) print $1 }'
>> /opt/nginx/sites/*.conf \
>> | grep -v server_name | grep -v ';' | grep -v '}'
>
> Why are you doing all that piping and grepping? And the -F" " confuses
> me...oh, I see. First, whitespace is the default field separator in awk.
> Then, are you asking if there's a line with a "." in it, or just any
> non-whitespace? If the latter... mmm, I see, you *really* don't understand
> awk.
>
> awk -f '{if ( $1 ~ /server_name/ ) {\
> server = $2;\
> gsub(/;|}/,"",server);\
> print server;
> }
> }'
> <snip>
> mark
>
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