pssh使用

• 前提做免密

• yum安装epel-release后，在yum安装pssh

-h 主机文件列表，内容格式：“user@host”

[root@centos7 ~]# cat /root/iplist 
root@172.16.134.128
root@172.16.134.129
root@172.16.134.130


#-h读取主机列表   -i输出信息	
[root@centos7 ~]# pssh -h /root/iplist -i 'cat /etc/hosts'
[1] 16:10:57 [SUCCESS] root@172.16.134.128
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.134.128 centos7
172.16.134.129 centos7-mini01
172.16.134.130 centos7-mini02
[2] 16:10:57 [SUCCESS] root@172.16.134.129
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
[3] 16:10:57 [SUCCESS] root@172.16.134.130
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

-H 指定某一台主机，多台主机时空格隔开并用引号引起来

#单引和双引都可以
[root@centos7 ~]# pssh -H "root@172.16.134.128 root@172.16.134.129" -i "cat /etc/hosts"
[1] 16:24:19 [SUCCESS] root@172.16.134.128
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.134.128 centos7
172.16.134.129 centos7-mini01
172.16.134.130 centos7-mini02
[2] 16:24:19 [SUCCESS] root@172.16.134.129
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

-A 手动输入密码模式

#如果没有做免密，可以手动输入，但还是麻烦，一般不用
[root@centos7 ~]# pssh -h /root/iplist -A -i 'ls -l'
Warning: do not enter your password if anyone else has superuser
privileges or access to your account.
Password: 
[1] 16:15:48 [SUCCESS] root@172.16.134.128
总用量 12
-rw-------. 1 root root 1659 4月   8 16:53 anaconda-ks.cfg
-rw-r--r--. 1 root root 1707 4月   8 17:04 initial-setup-ks.cfg
-rw-r--r--. 1 root root   60 4月  14 16:04 iplist
drwxr-xr-x. 2 root root    6 4月   8 17:05 公共
drwxr-xr-x. 2 root root    6 4月   8 17:05 模板
drwxr-xr-x. 2 root root    6 4月   8 17:05 视频
drwxr-xr-x. 2 root root    6 4月   8 17:05 图片
drwxr-xr-x. 2 root root    6 4月   8 17:05 文档
drwxr-xr-x. 2 root root    6 4月   8 17:05 下载
drwxr-xr-x. 2 root root    6 4月   8 17:05 音乐
drwxr-xr-x. 2 root root    6 4月   8 17:05 桌面