Tomcatバージョン確認 - Linux2
[ec2-user@host ~]$ sudo amazon-linux-extras install | grep tomcat 23 tomcat8.5 available \ 52 tomcat9 available [ =stable ] [ec2-user@host ~]$
[ec2-user@host ~]$ sudo amazon-linux-extras install | grep tomcat 23 tomcat8.5 available \ 52 tomcat9 available [ =stable ] [ec2-user@host ~]$