linux-centos7常用命令及参数

ping

ping -c 2 192.168.84.10
ping -c 次数 ip
-c参数 后跟ping的次数

[root@centos7 ~]# ping -c 2 192.168.84.10
PING 192.168.84.10 (192.168.84.10) 56(84) bytes of data.
64 bytes from 192.168.84.10: icmp_seq=1 ttl=64 time=0.067 ms
64 bytes from 192.168.84.10: icmp_seq=2 ttl=64 time=0.069 ms

--- 192.168.84.10 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.067/0.068/0.069/0.001 ms
[root@centos7 ~]# 

查看命令所属软件包

which mysql
rpm -qf /usr/bin/mysql
which 命令名
rpm -qf 命令路径

[root@centos7 ~]# which mysql
/usr/bin/mysql
[root@centos7 ~]# rpm -qf /usr/bin/mysql
mariadb-5.5.56-2.el7.x86_64
[root@centos7 ~]#