4
I have a text file with a list ip addresses and other information.
I am using an awk script to process this list and output various computations. I want to call dig -x
from inside the awk script and use the returned value.
I have tried
hostname = system("dig +short -x" ip_address);
but what occurs is -
the call to dig prints a line to the shell
hostname remains null
1This is the correct way to do it. You will probably want to do
close(cmd)
afterwards. – Paused until further notice. – 2011-01-07T18:44:27.800Yes thanks, found out about that after this posting, will close the question in 2 days(superuser requirement) – bryan – 2011-01-07T19:06:59.057