来自服务器的 scp 文件来自 Bash 脚本
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scp documents from server from inside Bash script
提问by Pradeep Pati
I normally use scplike so:
我通常这样使用scp：
myUser@myMachine:~/myapp$ scp [email protected]:/path/to/bin/*.derp .
[email protected]'s password: ********
herp1.derp 100% 732 0.7KB/s 00:00
herp2.derp 100% 215 0.2KB/s 00:00
herp3.derp 100% 682 0.7KB/s 00:00
myUser@myMachine:~/myapp$
I now want to write a Bash script that, among other things, does this for me, but where the password is stored in the script, and the script doesn't query the user to enter it:
我现在想编写一个 Bash 脚本，除其他外，它为我执行此操作，但密码存储在脚本中，并且脚本不询问用户输入密码：
sh dostuff.sh
Just running that should scpall the *.derpfiles to the user's local directory.
刚运行那应该把scp所有的*.derp文件都放到用户的本地目录下。
So I ask: how can I supply the password to scpfrom inside my script?Thanks in advance!
所以我问：如何scp从我的脚本内部提供密码？提前致谢！
回答by Pradeep Pati
Instead of hardcoding password in a shell script, use SSH keys, its easier and secure.
使用 SSH 密钥，而不是在 shell 脚本中硬编码密码，它更容易和安全。
$ scp -i ~/.ssh/id_rsa [email protected]:/path/to/bin/*.derp .
assuming your private key is at ~/.ssh/id_rsa
假设你的私钥在 ~/.ssh/id_rsa
To generate a public / private key pair :
生成公钥/私钥对：
$ ssh-keygen -t rsa
The above will generate 2 files, ~/.ssh/id_rsa(private key) and ~/.ssh/id_rsa.pub(public key)
以上将生成2个文件，~/.ssh/id_rsa（私钥）和~/.ssh/id_rsa.pub（公钥）
To setup the SSH keys for usage (one time task) :
Copy the contents of ~/.ssh/id_rsa.puband paste in a new line of ~devops/.ssh/authorized_keysin a new line in myserver.orgserver. If ~devops/.ssh/authorized_keysdoesn't exist, feel free to create it.
设置 SSH 密钥以供使用（一次性任务）：复制内容~/.ssh/id_rsa.pub并粘贴~devops/.ssh/authorized_keys到myserver.org服务器中的新行中。如果~devops/.ssh/authorized_keys不存在，请随意创建它。
A lucid how-to guide is available here.
