It's best to cook and immediately serve this pasta, but if preparing for later meals, add some olive oil (1-2 tbsp) to the pasta so it doesn't stick.
Also if you need to reheat pasta, try 1-2 minutes, anything past that results in an overly cooked pasta.
If you intend to eat this seafood linguini pasta later on, (right after boiling) quickly rinse the pasta in cold water:
1 - to bring down the temperature of the pasta, full control;
2 - to rinse the extra starch which would normally make it stick.
If this is fresh you only need to cut it into strips or rings, however you may like.
If you buy frozen squid, defrost it for at least 1 hour before preparing, so that it doesn't release too much water when cooking it.
These can be replaced (if you cannot find them in local stores) by fresh or good old smoked salmon.