mac clear port code example
Example 1: kill all server 5000 mac
#First run this, to get port information (with the port you want to kill)
sudo lsof -i :3000
#Then run this, with replaced by the value in the column returned by previous command.
kill -9
Example 2: kill port in mac terminal
sudo lsof -i :5955
Example 3: release a port in mac
sudo lsof -i :