如何使用Expect运行SSH脚本?

时间:2019-04-15 15:19:00

标签: linux ssh expect

我可以在期望的远程SSH主机上执行命令。只要我将自己限制为单行硬编码命令,一切都会好起来。但是,我想创建一个本地命令脚本以远程执行。

此方法有效,但只能使用一行命令:

#!/usr/bin/expect

set USER [lindex $argv 0]
set PASSWORD [lindex $argv 1]
set CMD [lindex $argv 2]
set timeout 10

spawn ssh -o StrictHostKeyChecking=no "$USER" "$CMD"

expect {
        timeout {
                puts "Timeout happened"
                exit 8
                }
        eof {
                puts "EOF received"
                exit 4
                }
        -nocase "password:" {
                send "$PASSWORD\n"
                expect {
                        "keys" {
                        exit 200
                                }
                        -nocase "password:" {
                                        exit 1
                                        }
                        }
                }
}

这不起作用:

#!/usr/bin/expect

set USER [lindex $argv 0]
set PASSWORD [lindex $argv 1]
set timeout 10

spawn ssh -o StrictHostKeyChecking=no "$USER" < /var/myscript.sh
#                           This don't work! ^^^^^^^^^^^^^^^^^^^

expect {
        timeout {
                puts "Timeout happened"
                exit 8
                }
        eof {
                puts "EOF received"
                exit 4
                }
        -nocase "password:" {
                send "$PASSWORD\n"
                expect {
                        "keys" {
                        exit 200
                                }
                        -nocase "password:" {
                                        exit 1
                                        }
                        }
                }
}

1 个答案:

答案 0 :(得分:2)

<是shell语法,因此您可以这样做:

spawn bash -c "ssh -o StrictHostKeyChecking=no $USER < /var/myscript.sh"