[CentOS] Optimizing grep, sort, uniq for speed

[Sean Carolan]

>> *sigh*
>> awk is not "cut". What you want is
>> awk '{if (/[-\.0-9a-z][-\.0-9a-z]*.com/) { print $9;}}' | sort -u

I ended up using this construct in my code; this one fetches out
servers that are having issues checking in with puppet:

awk '{if (/Could not find default node or by name with/) { print
substr($15, 2, length($15)-2);}}' ${TMPDIR}/* | sort -u

Thanks again, your knowledge and helpfulness is much appreciated.