9
Dec/080
Dec/080
Quickie: Sort IP-Addresses on linux command line (bash)
I have some ip-addresses in a text file. One address per line. The addresses are unsorted. I’d like to have them in a correct order. Some example from file “addresses”:
192.168.1.1 192.168.1.4 80.68.11.31 192.168.10.33 192.168.11.3 81.67.12.31
Now I run sort with the following options to sort these ip addresses:
:> sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n addresses
The sort command sends this to stdout:
80.68.11.31 81.67.12.31 192.168.1.1 192.168.1.4 192.168.10.33 192.168.11.3
Short explanation for the params:
-t .: Use dot as field seperator.
-k 1,1n: First sort key is field 1, sort it numeric.
The lines are sorted by each sort key one after another.
