[nycbug-talk] fun one liners

[Marc Spitzer]

On 6/8/06, Anthony Elizondo <anthony.elizondo at gmail.com> wrote:
> On 6/8/06, Pete Wright <pete at nomadlogic.org> wrote:
> > although one guy posted this:
> > % fstat | grep 'httpd.*/var ' | awk '{print $6}' | xargs -n 1 sudo find \
> > -x /var -inum | sort -u
>
> That is indeed awesome. Although, you could optimize it by moving the
> sort after the awk, since it looks like httpd has lots of different
> pids accessing the same inode. I'm squirreling it away.
>
> Given a ip1.txt, a text file that has a list of ip addresses in it,
> the following will put them in order:
>
> awk -F. '{print $1*65536+$2*256+$3 " " $0}' ip1.txt | sort -n | cut -f
> 2- -d ' ' > sorted.txt

why not 'sort  -n -k1,4 -t. ip1.txt' ?  your answer will only order to
a class C network, do you get signed int problems otherwise?

real big hammer is to put it into postgres as an ip and do a sql select on it.

marc

>
> Stolen from: http://articles.involution.com/clguide.html
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