install mongoDB on Linux

1) Create a /etc/yum.repos.d/mongodb-org-4.0.repo file so that you can install MongoDB directly using yum:

go to directory: /etc/yum.repos.d/
Create file: vi mongodb-org-4.0.repo
Paste data:
[mongodb-org-4.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/4.0/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.0.asc

2) Install the MongoDB packages.
sudo yum install -y mongodb-org

3) Start MongoDB.
sudo service mongod start

4) Begin using MongoDB.
mongo –host 127.0.0.1:27017