如何使用 Bash 脚本中的密码运行 sftp 命令? [英] How to run the sftp command with a password from Bash script?

问题描述

我需要使用 sftp 从 Linux 主机将日志文件传输到远程主机.我已经从我的操作组获得了相同的凭据.但是，由于我无法控制其他主机，因此我无法生成并与其他主机共享 RSA 密钥.

I need to transfer a log file to a remote host using sftp from a Linux host. I have been provided credentials for the same from my operations group. However, since I don't have control over other host, I cannot generate and share RSA keys with the other host.

那么有没有办法从 Bash 脚本内部通过 cron 作业?

So is there a way to run the sftp command (with the username/password provided) from inside the Bash script through a cron job?

我发现了一个类似的堆栈溢出问题，在 Bash 脚本中指定 sftp 的密码，但是我的问题没有令人满意的答案.

I found a similar Stack Overflow question, Specify password to sftp in a Bash script, but there was no satisfactory answer to my problem.

推荐答案

除了使用公钥认证之外，您还有几个选择:

You have a few options other than using public key authentication:

1. 使用钥匙串
2. 使用 sshpass(安全性较低，但可能满足您的要求)
3. 使用expect(最不安全且需要更多编码)

1. Use keychain
2. Use sshpass (less secured but probably that meets your requirement)
3. Use expect (least secured and more coding needed)

如果您决定给 sshpass 一个机会，这里有一个可行的脚本片段:

If you decide to give sshpass a chance here is a working script snippet to do so:

export SSHPASS=your-password-here
sshpass -e sftp -oBatchMode=no -b - sftp-user@remote-host << !
   cd incoming
   put your-log-file.log
   bye
!

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