1丶查看war包所在的目錄
#rpm -ql jenkins
/etc/init.d/jenkins //jenkins的啟動文件
/etc/logrotate.d/jenkins //日志切割
/etc/sysconfig/jenkins //jenkins的配置文件
/usr/lib/jenkins
/usr/lib/jenkins/jenkins.war //jenkins的程序war包
/usr/sbin/rcjenkins //jenkins的為二進制文件
/var/cache/jenkins //jenkins的程序文件，運行程序解壓出來的
/var/lib/jenkins //jenkins的主目錄
/var/log/jenkins //jenkins的日志文件
2丶下載最新版本的jenkins的war包
test -d /tools || mkdir /tools
cd /tools
wget https://mirrors.tuna.tsinghua.edu.cn/jenkins/war/2.125/jenkins.war
3丶停止jenkins服務
systemctl stop jenkins
4丶備份原來的war包,並拷貝最新版本war包到/usr/lib/jenkins目錄下
cd /usr/lib/jenkins/
mv jenkins.war jenkins-2.89.4.war.bak
mv /tools/jenkins.war .
5丶啟動jenkins
systemctl start jenkins
ss -anltup | grep 8080
