Centos7 安装 python3

yum install -y epel-release
yum install -y python36 python36-pip python-pip

创建软连接

ln -s /usr/bin/python3.6 /usr/bin/python3
ln -s /usr/bin/pip3.6 /usr/bin/pip3

安装pssh

pip install pssh

节点

mkdir -p ~/.dsh/group
vim ~/.dsh/group/nodes

文件内容

root@n1
root@n2
root@n3

别名

vim /etc/bashrc

文件内容

alias ndsh="dsh -g nodes"
alias npssh="pssh -h /root/.dsh/group/nodes"
alias npscp="pscp -h /root/.dsh/group/nodes"
alias npslurp="pslurp -h /root/.dsh/group/nodes"