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# Npm Express libs:
###	1. Express (Framework)
###	2. Bodyparser (middleware)
###	3. cors ( for giving access from any client)
###	4. morgan (for logging on console about calls)
###	5.jsonwebtoken ( for creating auth  Bearer token)
###	6.bcryptjs ( for password hashing)[npm i bcrypt-nodejs --save]


# Npm Mysql lib:

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   		BASIC INTERFACE AS A COMMUNICATOR

How to create an interface:

 public interface ItemClickListener {
    void onItemClick(String message);
}

An Interface has two User class.
Sender: 

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For Opening Terminal

cntl+alt+t

For Getting into The home dir of any user.. Where Desktop, Music, Picture folders exists.

cd

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# SSH Cheat Sheet
## This sheet goes along with this [SSH YouTube tutorial](https://www.youtube.com/watch?v=hQWRp-FdTpc&t=1270s)

### Login via SSH with password (LOCAL SERVER)
```$ ssh [email protected]```

### Create folder, file, install Apache (Just messing around)
```$ mkdir test```

```$ cd test```

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### For Accessing any server in gitbash
```
ssh userName@hostAddress
```
### Then enter the password

### Install update
```
sudo apt-get update
```

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## Angular 7 CLI

## install the angular cli
```
npm install -g @angular/cli
```
## create a new project
```
ng new app-name
```

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## Type Script Crash Course

### Install type script using npm
```
npm i -g typescript
```

### compile a type script code into java scipt
```
tsc filename.ts

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## MongoDb is a document database or nosql database with no relation like firebase db

## Install Mongodb and mongodb compass app

## add the mongod path into environment variables

## cheack mongo db version
```
mongod --version
```

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### Preparing the platforms :
####    1: install node with npm
####    2: install ionic 
```
npm i -g ionic

```

####    3: install cordova and jdk
```

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### For showing mysql verseio
```
mysql --version

```

### For using mysql cli
```
mysql
```