How to pass parameters to the CT script

How to pass parameters to the login Ct script, for example, the following script is used to perform ssh password-less login, and automatically enter the confirm yes and password information, user name, password, and hostname to pass the ssh. expPython code through Parameters #! /Usr/bin/expectsettimeout10setusername [... how to pass parameters to the login Ct script, for example, the following script is used for ssh password-less login, and the system automatically enters the confirmation yes and password information, user name, password, and hostname to pass ssh through parameters. exp Python code #! /Usr/bin/empty Ct set timeout 10 set username [lindex $ argv 0] set password [lindex $ argv 1] set hostname [lindex $ argv 2] spawn ssh-copy-id- i. ssh/id_rsa.pub $ username @ $ hostname your CT "yes/no" send "yes \ r" your CT "password:" send "$ password \ r" your Ct eof execute the script. /ssh. exp root pasword hostname1 receive CT parameters are received in different ways than bash scripts. bash uses $0... $ n in this way, while CT uses set <Variable name> [Lindex $ argv ], Such as set username [lindex $ argv 0]