Linux deployment uses commond

To Kill Port On Linux
==========================
kill $(lsof -t -i:8080)

To Move File to Other Location
=============================
mv command main options:

option	description
mv -f	force move by overwriting destination file without prompt
mv -i	interactive prompt before overwrite
mv -u	update - move when source is newer than destination
mv -v	verbose - print source and destination files
man mv	help manual
Example:- 
mv [options] source dest

Remove a full directory in Linux
=================================
rm -rf <<directoryName>> 
rm -r <<directoryName>>

To Start Tomcat Server
=====================
screen ./startup.sh

To Quit file
=============
Press Esc
:q! this mean quit without save
:q this mean quit only
:wq this mean quit and save 

To change Permission
========================
chmod 755 -R /opt/lampp/htdocs // For Read and download access

To Get Current Location
------------------------
pwd

To Unzip file 
==================
unzip <<filename>>

To Extract tar file
=====================
tar xvf <<filename>>

To connect Mongo DB
========================
mongo --port 27017

To Show Used and Available Ram Memory
========================
free -m

To Show Used and Available Disk Memory
========================
df -h
To Show the OS name and verison
========================
cat /etc/*-release

Create the user administrator
==============================
use admin
db.createUser(
  {
    user: "test",
    pwd: "test",
    roles: [ { role: "userAdminAnyDatabase", db: "admin" }, "readWriteAnyDatabase" ]
  }
)

To Install JDK in linux
================================
sudo yum install java-1.8.0-openjdk-devel
java -version

To Set Java Home
=========================
export JAVA_HOME="/usr/lib/jvm/java-1.8.0"
export PATH=$JAVA_HOME/bin:$PATH

To Read Only File
=====================
cat <<filename>>

Install unzip on CentOS
===========================
yum install unzip

To Install Docker in Linux
==================================
STEP 1 - Connect to Linux system
STEP 2 - Install DOCKER
sudo yum -y update
sudo yum install -y docker
docker // to docker command
docker --version // to Show the version
STEP 3 - start DOCKER
sudo service docker start
docker info // To check docker is runnning or not

docker images // this will show all the images
docker ps // it will list out the running container
docker ps -a //it will lis out all the container
docker run hello-world // this find the hello-world image in your system if not found then find form docker repository and install
sudo service docker stop // to stop docker
sudo yum remove docker // to remove docker

****************** Jenkins Installation on AWS  *********************
1: Update the yum package management tool.
$ sudo yum update –y

2: Download the latest Jenkins code package.
$ sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins.io/redhat/jenkins.repo

3:Import a key file from Jenkins-CI to enable installation from the package.
$ sudo rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key
 
4: Install Jenkins.
$ sudo yum install jenkins -y

5:Start Jenkins as a service.
$ sudo service jenkins start

As noted on the user interface, you can find this password in /var/lib/jenkins/secrets/initialAdminPassword. 
Paste the value into the password box, then choose Continue.