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如何在Linux上使用命令行管理密码

在基于密码的认证在网络盛行的今天,你可能需要或者已经使用了某种密码管理工具来跟踪管理你正在使用的所有密码。有各种各样的在线或离线服务或者软件工具用于完成此类事情,而这些工具因复杂程度、用户界面或者目标环境(如企业或终端用户)的不同而各不相同。例如,有一些是为终端用户开发基于图形化的密码管理器,如KeePass(X)

对于那些不想要依赖图形化进行密码管理的用户,笔者将会讲述如何在命令行下使用 pass来管理密码,这是一个简单的用于命令行管理密码的工具

该密码工具实际上是一个shell脚本编写的前端其中调用了几个其它工具如gpgpwgengitxsel来使用OpenGPG管理用户的密码信息。各个密码使用gpg工具进行加密并存储到本地密码仓库中。密码信息可以通过终端或者自清除的剪贴板工具使用。

该密码工具相当灵活并且使用起来及其简单。你可以将每个密码信息存储到一个OpenGPG保护的普通文本文件并且将不同的密码文件分组多个类目中。它支持bash自动补全特性因此可以很方便地使用TAB键来补全命令或者很长的密码名称。

在Linux上安装pass

在DebianUbuntu或者Linux Mint上安装pass

$ sudo apt-get install pass
$ echo "source /etc/bash_completion.d/password-store" >> ~/.bashrc

在Fedora上安装pass

$ sudo yum install pass
$ echo "source /etc/bash_completion.d/password-store" >> ~/.bashrc

在CentOS上安装pass首先启用EPEL仓库,然后执行以下命令:

$ sudo yum install pass
$ echo "source /etc/bash_completion.d/password-store" >> ~/.bashrc

在Archlinux上安装pass

$ sudo pac -S pass
$ echo "source /etc/bash_completion.d/password-store" >> ~/.bashrc

初始化本地密码仓库

在使用密码工具之前你需要执行一次初始化步骤该步骤包括创建一个GPG密钥对如果你还没有以及一个本地密码仓库。

首先通过以下步骤创建一个GPG密钥对公钥/私钥。如果已经创建了自己的GPG密钥对可以跳过此步骤。

$ gpg --gen-key 

执行该步骤,会询问你如下问题。如果你不确定,可以选择接受默认回答。作为密钥生成部分,你将要为你的密钥创建一个加密口令,这个口令实际上是你访问存储在本地密码仓库中的任何密码信息时的主密码。成功创建密钥对后,创建的密钥对会存储在~/.gnupg目录中。

接下来,运行以下命令来初始化本地密码仓库。下面的,输入之前创建密钥对时的关联电子邮件地址。

$ pass init <gpg-id> 

该命令会在~/.password-store目录中创建一个密码仓库。

在终端使用pass管理密码

插入新密码信息

要将新的密码信息插入到本地密码仓库中,请遵循以下命令格式:

$ pass insert <password-name> 

是你定义的专有名称,并且可以分级(如 "finance/tdbank", "online/gmail.com")。在这种情况下,密码信息可以存储到~/.password-store目录下对应的子目录中。

如果你想要分多行插入密码信息,请像以下命令一样使用"-m"选项。以你自己喜欢的任何格式来输入密码信息然后按Ctrl+D来结束。

$ pass insert <password-name> -m 

查看所有密码名称列表

要查看所有存储的密码名称列表,只需输入"pass"命令:

$ pass 

从密码仓库中取回密码信息

要访问特定密码列表中的内容,只需使用以下命令:

$ pass <password-name> 

例如:

$ pass email/gmail.com 

会要求你输入密码口令来解锁密钥。

如果你想要将密码复制到剪贴板,而不是显示到终端屏幕上,使用以下命令:

$ pass -c email/gmail.com 

当密码被复制到剪贴板剪贴板在45秒后会被自动清空。

在密码仓库中生成并存储新密码

使用pass命令你也可以生成一个新的随机密码该密码可用于任何目的。pass工具将会使用pwgen工具来生成一个好的随机密码。你可以指定密码的长度或者生成带或不带符号的密码。

例如要生成一个具有10个字符不带符号的密码并将它存储到 "email/new_service.com"列表中:

$ pass generate email/new_service.com 10 -n 

移除密码信息

要移除现存的密码信息是很容易的:

$ pass rm email/gmail.com 

小结一下pass是及其灵活便于携带并且更为重要的是易于使用。对于正在寻找能简单而行之有效地、安全地、并且不依赖图形化管理任何私人信息的工具的人笔者强烈推荐pass。


via: http://xmodulo.com/2014/05/manage-passwords-command-line-linux.html

译者:GOLinux 校对:wxy

本文由 LCTT 原创翻译,Linux中国 荣誉推出