Sort netflow packet capture

grep -o -P '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:[0-9]{1,5}\s->\s{5}[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:[0-9]{1,5}' <capture file> | tr -d ' ' | sed 's/:.....//g' | sort -n | uniq -c | sort -nr
Sort netflow packet capture by unique connections excluding source port.
Sample Output
    224 10.153.154.131->10.153.199.4:443
    206 10.153.217.69->10.153.156.4:53
    156 204.188.136.12->10.153.29.36:443
    121 204.156.7.28->10.153.29.35:443
    110 10.153.136.10->10.153.156.5:53
    104 10.153.219.86->10.153.156.4:53

1
By: santizo
2014-03-05 21:34:42

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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