When --interactive is paired with any output option like -oG or --output-format no information is displayed on the screen.
A run with just interactive:
sudo masscan -p80 0.0.0.0/0 --exclude 255.255.255.255 --interactive
Starting masscan 1.0.2 (http://bit.ly/14GZzcT) at 2014-01-23 21:26:32 GMT
-- forced options: -sS -Pn -n --randomize-hosts -v --send-eth
Initiating SYN Stealth Scan
Scanning 4294967295 hosts [1 port/host]
Discovered open port 80/tcp on 115.165.126.162
Discovered open port 80/tcp on 86.56.196.77
Discovered open port 80/tcp on 108.171.250.220
Discovered open port 80/tcp on 108.59.251.233
Discovered open port 80/tcp on 109.185.249.145
Discovered open port 80/tcp on 109.62.250.71
Discovered open port 80/tcp on 71.189.241.75
Discovered open port 80/tcp on 71.227.241.15
Discovered open port 80/tcp on 173.246.37.146
Discovered closed port 80/tcp on 174.50.36.215
^Cwaiting 10 seconds to exit...
saving resume file to: paused.conf
A run with interactive and -oG:
sudo masscan -p80 0.0.0.0/0 --exclude 255.255.255.255 --interactive -oG badtest.grep
Starting masscan 1.0.2 (http://bit.ly/14GZzcT) at 2014-01-23 21:25:31 GMT
-- forced options: -sS -Pn -n --randomize-hosts -v --send-eth
Initiating SYN Stealth Scan
Scanning 4294967295 hosts [1 port/host]
^Cwaiting 10 seconds to exit...
saving resume file to: paused.conf
When --interactive is paired with any output option like -oG or --output-format no information is displayed on the screen.
A run with just interactive: sudo masscan -p80 0.0.0.0/0 --exclude 255.255.255.255 --interactive
Starting masscan 1.0.2 (http://bit.ly/14GZzcT) at 2014-01-23 21:26:32 GMT -- forced options: -sS -Pn -n --randomize-hosts -v --send-eth Initiating SYN Stealth Scan Scanning 4294967295 hosts [1 port/host] Discovered open port 80/tcp on 115.165.126.162
Discovered open port 80/tcp on 86.56.196.77
Discovered open port 80/tcp on 108.171.250.220
Discovered open port 80/tcp on 108.59.251.233
Discovered open port 80/tcp on 109.185.249.145
Discovered open port 80/tcp on 109.62.250.71
Discovered open port 80/tcp on 71.189.241.75
Discovered open port 80/tcp on 71.227.241.15
Discovered open port 80/tcp on 173.246.37.146
Discovered closed port 80/tcp on 174.50.36.215
^Cwaiting 10 seconds to exit...
saving resume file to: paused.conf
A run with interactive and -oG: sudo masscan -p80 0.0.0.0/0 --exclude 255.255.255.255 --interactive -oG badtest.grep
Starting masscan 1.0.2 (http://bit.ly/14GZzcT) at 2014-01-23 21:25:31 GMT -- forced options: -sS -Pn -n --randomize-hosts -v --send-eth Initiating SYN Stealth Scan Scanning 4294967295 hosts [1 port/host] ^Cwaiting 10 seconds to exit...
saving resume file to: paused.conf