CentOS7 update and install the latest software version and security upgrade

CentOS7 update and install the latest software version and security upgrade

In addition to updating and installing the latest software version and security upgrade, no new software will be installed. In general, the update and upgrade are the same, except for the actual upgrade = update + update for disposal.

# Yum update & yum upgrade

Update CentOS servers with minimal installation

Important: You can also run the following command. This does not prompt software updates, and you do not need to enter 'y' to accept the changes.

However, it is always a good idea to view changes on the server, especially in production. Therefore, the following command is not recommended although it can be automatically updated and upgraded for you.

# Yum-y update & yum-y upgrade