-o option
             Can be used to give options in the format used in the configuration file.  This is useful for specifying options for which there is no separate command-line flag.  For
             full details of the options listed below, and their possible values, see ssh_config(5).


[root@netkiller tmp]# ssh root@192.168.2.18
The authenticity of host '192.168.2.18 (192.168.2.18)' can't be established.
RSA key fingerprint is 83:e9:fc:a9:98:6b:33:41:0f:b2:44:13:01:f5:af:3c.
Are you sure you want to continue connecting (yes/no)? 

===>这段话的意思是,无法确认host主机的真实性,只知道它的公钥md值,问你还想继续连接吗?

[root@netkiller tmp]# ssh  -o stricthostkeychecking=no root@192.168.2.18
Warning: Permanently added '192.168.2.18' (RSA) to the list of known hosts.
root@192.168.2.18's password: 
			
			

			
iMac:ensd neo$ ssh admin@172.18.100.253 -v
OpenSSH_8.6p1, LibreSSL 3.3.6
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: include /etc/ssh/ssh_config.d/* matched no files
debug1: /etc/ssh/ssh_config line 54: Applying options for *
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug1: Connecting to 172.18.100.253 [172.18.100.253] port 22.
debug1: connect to address 172.18.100.253 port 22: Operation timed out
ssh: connect to host 172.18.100.253 port 22: Operation timed out			
			
			

			
mvn package
scp -f target/*.jar root@www.netkiller.cn:/opt/cordyceps/
ssh root@www.netkiller.cn "cd /srv/cordyceps && git pull"
ssh root@www.netkiller.cn "cd /srv/cordyceps && python docker.py -e cordyceps restart"
ssh -t root@www.netkiller.cn "cd /srv/cordyceps && export TERM=xterm-256color && python docker.py -e cordyceps logs"			
			
			

-t：强制 SSH 分配 伪终端（PTY）没有 -t 时，远程认为不是终端，自动禁用 ANSI 颜色

export TERM=xterm-256color 告诉远程：“我这终端支持 256 色 ANSI”