首先要查看一下ssh命令存在何处
# which ssh
/usr/bin/ssh
使用ssh的绝对路径
# /usr/bin/ssh slave1
Welcome to Ubuntu 16.04 LTS (GNU/Linux 4.4.0-21-generic x86_64)
* Documentation: https://help.ubuntu.com/
545 packages can be updated.
240 updates are security updates.
<Linux> SSH配置之后 SHH slave1 测试 error：SSH: command not found
原文：http://www.cnblogs.com/Liuyt-61/p/6959416.html