Windows Netstat and findstr - Same as find | grep on Linux/Unix

Unix/Linux users are familiar with the following patterns of usage for finding listening ports:

looking for services listening on ports 443 or 444:
netstat -a | grep 44[34]


find a service listening on port 602, 612, 604, 614, 608, or 618:
netstat -an | grep 6[01][248]


To do the same on windows, use netstat and findstr:


find a window's service listening on port 602, 612, 604, 614, 608, or 618:
netstat -an | findstr /R 6[01][248]