netstat -ntlp
netstat -nlp
systemctl status firewalld
systemctl stop firewalld
cd /usr/local/
ls
more startup.sh
./startup.sh
./status.sh
./stop.sh
ps -ef |grep redis => redis进程id
yum install -y ntp; ntpdate time-a.nist.gov => 更新时间
kill -9 进程ID 进程ID ... => 强制杀死进程、进程