Question

I generated data from the netstat -a command in the terminal, now from there the result is all the incoming and outgoing ip addresses which I wrote to a file, how to I retrieve only the ip address via columns?

Also, how do I retrieve data by column parameters? For example, starting at column 10 and ending at column 27. I have tried the filter function but it didn’t work. Thanks!

Answer 1

This is basically the same as Levon’s answer, but slightly more compact and Pythonic, and with the numbers adjusted to a guess at what I suspect the OP is trying to do.

with open('data.txt') as inf:
  for lc, line in enumerate(inf):  # lc - current line count
    if lc >= 2: # netstat usually has 2 lines of header info
      print ' '.join(line.split()[3:5]) # cols 3-4 are the addresses