find what uses a port like 8080 kill the process on mac

Many a times during debugging, you find that your port is already used. You can find at this point where it is used and kill the process.


Step 1: Find all processes using port
$ netstat -vanp tcp | grep 8080


Step 2: Kill the task
eg: $ sudo kill -9 73804


Refer screen shot below:

cheers :)

First Hello World using Hack & HHVM from Facebook

1. Install HHVM on MacOS via Homebrew:

brew tap hhvm/hhvm
brew install hhvm

The out-of-the-box HHVM configuration won't need tweaking by most new users. Notably, the JIT compiler that gives HHVM its speed is on by default. If you want to take a look at the configuration used, it's at /usr/local/etc/hhvm/php.ini in MacOS.

2. Test: After installing HHVM, change to the directory where your code lives, and start up HHVM:

hhvm -m server -p 8080

-m represents the mode and here indicates that HHVM is running in HTTP server mode.

-p configures the TCP port that HHVM uses to listen to HTTP requests. The default port is 80, the standard HTTP port. However, that port requires root access, so for this example, we will use port 8080.

This will start the server as follows and then you can test on browser.

3. Write a simple "Hello World" program named hello.hack:

<<__entrypoint>> function main(): noreturn{ echo "Hello World in Hack Language! \nThis is Anwar Jamal Faiz"; exit(0); }

Save this hello.hack in the same directory that you ran the hhvm command from above. Then, load http://localhost:8080/hello.hack in your browser and verify you see "Hello World!" appear.


See in browser:

You may also write the program as:

<<__entrypoint>>
function main(): noreturn{
  echo "Hello World in Hack Language! \nThis is Anwar Jamal Faiz";
  exit(0);
}

4.  You can directly run file using hhvm itself.

$ hhvm hello.hack

Note: You can configure HHVM too. Running HHVM automatically at boot as a service (instead of just on the command line as above) unfortunately does require some configuration. See the proxygen documentation for details. However, default settings are okay for any average usecase.

How to install Redis and run its instance

First, step first. You can simply install it using homebrew
$ brew install redis

After installation you can check that it creates a configutration file at:
/usr/local/etc/redis.conf

Then, you can verify the install as follows:
$ brew info redis

You can start an instance i.e Start Redis server using the configuration file.
$ redis-server /usr/local/etc/redis.conf

By default, it Runs in standalone mode on Port: 6379


Test if Redis server is running.
$ redis-cli ping
It will replu=y you pong!

To Uninstall Redis and its files.
$ brew uninstall redis


What more do you want. So cheers.
:)