常用Linux指令收集

常用Linux指令收集

防火墙操作

#添加-允许8084端口号出入
[_0_4_centos sbin]# firewall-cmd --add-port=8084/tcp --permanent
success

#重新加载防火墙规则
[_0_4_centos sbin]# firewall-cmd --reload
success

#查看防火墙规则
[_0_4_centos sbin]# firewall-cmd --list-all
public
  target: default
  icmp-block-inversion: no
  interfaces: 
  sources: 
  services: ssh dhcpv6-client
  ports: 8081/tcp 8080/tcp 8088/tcp 8089/tcp 8082/tcp 8083/tcp 8084/tcp
  protocols: 
  masquerade: no
  forward-ports: 
  source-ports: 
  icmp-blocks: 
  rich rules:

#关闭防火墙
[_0_4_centos sbin]# systemctl stop firewalld 

#打开防火墙
[_0_4_centos sbin]# systemctl start firewalld 

#查看防火墙状态
[_0_4_centos sbin]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: active (running) since Fri 2020-01-31 11:18:25 CST; 3s ago
     Docs: man:firewalld(1)
 Main PID: 25686 (firewalld)
    Tasks: 2
   Memory: 28.0M
   CGroup: /system.slice/firewalld.service
           └─25686 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

查看端口占用情况

#netstat -tunlp查看有哪些端口号被占用
[ webapps]# netstat -tunlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name   
tcp        0      0 0.0.0.0:3306                0.0.0.0:*                   LISTEN      27893/mysqld        
tcp        0      0 127.0.0.1:6379              0.0.0.0:*                   LISTEN      2770/redis-server 1 
………………

复制文件

[ ~]# cd /opt/java/tomcat/webapps/
[ webapps]# pwd
/opt/java/tomcat/webapps##将/opt/java/tomcat/webapps/lop_project文件夹下的全部文件，复制到/opt/java/tomcat/webapps/lop_project_house目录下
[ webapps]# cp -r lop_project/. lop_project_house/