crt.Session.Connect "/Serial COM2 /BAUD 38400 /NOCTS"
更多命令行参数可查看SecureCRT-Help-Help Topics--搜索相应的关键字，比如CTS
我用的是Ubuntu，文档在：file:///usr/share/doc/scrt/SecureCRTHelp/SecureCRT.htm
参考：
https://forums.vandyke.com/showthread.php?t=2991
https://www.vandyke.com/support/tips/scripting/scripting_essentials.pdf
找不到答案也可以求肋上面链接的vandyke论坛哦。