如何在shell脚本中输入密码? [英] How to give password in shell script?

问题描述

在shell脚本文件中，我正在使用某些命令，例如scp和make install，要求输入密码.

In a shell script file I am using some commands like scp and make install which ask for my password.

我运行一个Shell脚本来编译一个大项目，一段时间后，它会要求我输入使用scp的密码.我需要等待该过程，然后再输入密码.

I run a shell script to compile a big project, and after some time it asks for my password for using scp. I need to wait for that process and give the password after that.

我只想通过shell脚本完成所有操作而无需交互，那么如何避免在此提示输入密码?

I just want to do it all by shell script without interaction, so how can I avoid being prompted for the password here?

推荐答案

如果不能使用ssh trust，并且必须稍后在脚本中输入密码，请使用read -s -p "Password:" USER_PASSWORD静默读取密码.然后，您可以export USER_PASSWORD到一个期望脚本，避免它显示在ps中:

If you can't use ssh trust and must enter the password later on in your script, use read -s -p "Password:" USER_PASSWORD to silently read in the password. You can then export USER_PASSWORD to an expect script, avoiding it being displayed in ps:

    #!/usr/bin/expect -f
    spawn scp some.file USER@otherhost:~
    expect "assword:"
    send -- "$env(USER_PASSWORD)\r"
    expect eof

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