[TriLUG] Small puzzle: Fix my bad one-liner [Was: TLDP]

[Warren Myers]

This is what I use (on non-gz'd files) to check for unique IPs across all
domains hosted on my server:

for f in *access_log; do echo -e `cut -d ' ' -f1 $f | sort -u | wc -l` "\t
$f" ; done


On Tue, Jan 6, 2015 at 4:08 PM, Carl Schaefer <schaefer at trilug.org> wrote:

> > $ sudo gzip -dc 2015/01/www.tldp.org.vhost[123].access.log.20150103.gz |\
> >      awk '{addrs[$1]++}END{for(ip in addrs){x++};print x}'
>
> this is a good use of awk, but personally I wouldn't give it high marks
> for readability.
>
> A program to do this can be written in any language, of course, but to
> me an approach like this feels more "unix-y":
>
>   zcat path/to/logs*.gz | cut -d' ' -f1 | sort -u | wc
>
> which I'd assume to be less efficient than a program in awk or
> whatever...
> Carl
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