パッケージマネージャ

• Ubuntu

(16)(18)
apt update
apt upgrade

• Debian

(9)

vi /etc/apt/sources.list

deb http://ftp.jp.debian.org/debian/ stretch main
deb-src http://ftp.jp.debian.org/debian/ stretch main

deb http://security.debian.org/debian-security stretch/updates main
deb-src http://security.debian.org/debian-security stretch/updates main

deb http://ftp.jp.debian.org/debian/ stretch-updates main
deb-src http://ftp.jp.debian.org/debian/ stretch-updates main

apt update
apt upgrade

• CentOS

(7)

yum update

• Windows Server

(2012R2)

Get-WindowsFeature

Install-WindowsFeature Telnet-Client

-----------------------------------------
--Chocolatey
https://chocolatey.org/

Set-ExecutionPolicy Bypass -Scope Process -Force; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
choco

choco list -l
choco install -y jdk8
choco list -l
choco uninstall -y jdk8
choco list -l

-----------------------------------------