如何将参数传递给具有 Spawn 命令的 (.sh) 脚本？

Question

我有以下小脚本：

#!/usr/bin/expect

set timeout 90
set ip [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set commands "sudo du -sh /var/tmp"
set regexp ".*"
set failonmatch "false"

if {[string trim $regexp] == ""} {
    set regexp ".*"
}
if {[string trim $failonmatch] == ""} {
set failonmatch "false"
}

log_user 0

spawn ssh -o StrictHostKeyChecking=no $username@$ip $commands
...

---

（在传球生成后使用 Expect 方法）。

我想在另一台设备上运行命令（比如 IP 111.23.44.33）。

如何使用特定的 IP、用户名和密码运行命令？我的意思是，我应该使用什么命令来指定参数

我是 Unix 和 Expect 的新手，感谢您的帮助！！

编辑，这是我拥有的期望代码（以防万一）：

expect {
    timeout {
            send_user "Timeout connecting to device.\n"
            close
            wait
            exit 1
    }
    eof {
        send_user "Could not connect to device.\n"
        wait
        exit 1
    }
    -re "(.*refused)" {
        send_user "Connection to device refused.\n"
        wait
        exit 1
    }
    "*assword*:" {send "$password\r"}
}

expect {
    timeout {
            send_user "Timeout executing command on device.\n"
            close
            wait
                    exit 1
    }
    full_buffer {
            append outcome $expect_out(buffer)
            exp_continue
    }
    eof {
        append outcome $expect_out(buffer)
        puts $outcome
        if {"$failonmatch" == "false"} {
            if {[regexp $regexp $outcome]} {
                wait
                exit 0
            } else {
                wait
                exit 1
            }
        } else {
            if {[regexp $regexp $outcome]} {
                wait
                exit 1
            } else {
                wait
                exit 0
            }
        }
    }
    -re "(^.*assword*:)" {
            send_user "Unable to login to device.\n"
            puts $expect_out(buffer)
            close
            wait
            exit 1
    }
}

---

谢谢！！

Answer 1

从代码中可以看出，参数是从$argv列表中读取的：

set ip [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]

expect 是 tcl 语言的扩展。 argv 变量是 documented here。

使用参数调用 expect 程序：

/path/to/expect/program 1.2.3.4 username 's3cretpa$$word'