linux

观察linux系统日志，查看jvm是否被linux系统杀死

　　dmesg|grep java

　　/var/log/message

PuTTY

Secure Shell Client 

win10子系统ubuntu 

安装位置

　　C:Users***AppDataLocalPackagesCanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc

ubuntu更换阿里云软件源

sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup #备份当前也就是默认官方的源列表

sudo gedit /etc/apt/sources.list #修改sources.list文件中源的列表，删除全部内容，替换为国内源地址。 保存编辑好的文件。

sudo apt-get update

deb http://mirrors.aliyun.com/ubuntu/ trusty main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main multiverse restricted universe

sudo apt-get clean

sudo apt-get update

sudo apt-get remove gcc gcc-xx   #可能有多个版本，都要删掉

sudo apt-get remove g++

sudo apt-get install gcc

sudo apt-get install build-essential  #安装g++编译器

常用命令

ps -ef|grep java //查看java进程

kill -9 进程号 //杀进程

tail -f -n 100 xxxx.log //查看日志

vi xxxx.out
　　:w //保存
　　:q //退出
　　:wq //保存退出
　　shift+g //文本的最后一行
　　两次g //跳到第一行的第一个字符
　　0 //当前行的第一个字符

//springboot启动命令
nohup java -jar xxxx.jar --server.port=8087 --spring.profiles.active=uat &

chmod u+x *.sh //执行脚本权限

killall -9 java //杀所有java进程

自动杀java进程脚本

#!/usr/bin/env bash
# shellcheck disable=SC2009
ID=$(ps -ef | grep 模糊查询程序名称 | grep -v "grep" | awk '{print $2}')
echo "$ID"
echo "---------------"
for id in $ID
do
kill -9 "$id"
echo "killed $id"
done
echo "reset success"

自动杀java进程自动启jar包

pkill -f xxxxxx.jar 
nohup java -jar  -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=128m -Xms1024m -Xmx1024m -Xmn256m -Xss256k -XX:SurvivorRatio=8 -XX:+UseConcMarkSweepGC xxxxxx.jar --server.port=3093 --spring.profiles.active=uat &

#!/usr/bin/env bash
# shellcheck disable=SC2009

ID=$(ps -ef | grep xxxxx | grep -v "grep" | awk '{print $2}')
echo "$ID"
echo "---------------"
for id in $ID
do
kill -9 "$id"
echo "killed $id"
done

sleep 5
nohup java -jar XXXXX.jar --server.port=9095 --spring.profiles.active=uat &

echo "reset success"