ubuntu user add

在Ubuntu中，有两个命令可以用来创建用户，即adduser和useradd。这两个命令在功能上是相似的，都可以用来创建用户。然而，它们在使用方式和参数上有一些区别。

adduser命令更适合人际对话的过程，它会提示操作者按照步骤设置用户的密码和其他信息。它还可以自动创建用户的主目录。而useradd命令没有人机对话的过程，需要手动设置用户的密码和其他信息。使用useradd命令创建用户时，可以使用-d参数指定用户的主目录。

需要注意的是，有些网上的介绍可能会误导人认为使用useradd命令创建的用户没有密码和主目录，这是不准确的。事实上，只有当使用useradd命令不带任何参数时才会出现这种情况。正确使用useradd命令时，可以通过指定-d参数来创建主目录，并通过其他参数来设置用户的密码和其他信息。

总结起来，adduser命令更加方便和友好，适合日常使用，而useradd命令则更加灵活，适合在脚本或批处理中使用。<span class="em">1</span><span class="em">2</span><span class="em">3</span><span class="em">4</span>

相关问题

W: http://archive.ubuntu.com/ubuntu/dists/jammy/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: http://archive.ubuntu.com/ubuntu/dists/jammy/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: GPG error: http://archive.ubuntu.com/ubuntu jammy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C E: The repository 'http://archive.ubuntu.com/ubuntu jammy InRelease' is not signed. W: http://security.ubuntu.com/ubuntu/dists/jammy-security/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: http://security.ubuntu.com/ubuntu/dists/jammy-security/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: GPG error: http://security.ubuntu.com/ubuntu jammy-security InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C E: The repository 'http://security.ubuntu.com/ubuntu jammy-security InRelease' is not signed. W: http://archive.ubuntu.com/ubuntu/dists/jammy-updates/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: http://archive.ubuntu.com/ubuntu/dists/jammy-updates/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: GPG error: http://archive.ubuntu.com/ubuntu jammy-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C E: The repository 'http://archive.ubuntu.com/ubuntu jammy-updates InRelease' is not signed. W: http://archive.ubuntu.com/ubuntu/dists/jammy-backports/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: http://archive.ubuntu.com/ubuntu/dists/jammy-backports/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg are ignored as the file is not readable by user '_apt' executing apt-key. W: GPG error: http://archive.ubuntu.com/ubuntu jammy-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 871920D1991BC93C E: The repository 'http://archive.ubuntu.com/ubuntu jammy-backports InRelease' is not signed. E: Problem executing scripts APT::Update::Post-Invoke 'rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true' E: Sub-process returned an error code

这个错误是由于apt-key无法读取/etc/apt/trusted.gpg.d/目录下的文件，导致无法验证Ubuntu软件源的签名。解决这个问题的方法是：

1. 使用以下命令导入缺失的公钥：

   sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 871920D1991BC93C

注意替换上述命令中的871920D1991BC93C为您的错误中所提到的缺失的公钥。

2. 如果上述命令无效，可以尝试使用以下命令：

   sudo apt-key adv --refresh-keys --keyserver keyserver.ubuntu.com

3. 如果上述命令仍然无效，可以尝试手动下载公钥并导入。首先，找到缺失的公钥的ID，例如871920D1991BC93C。然后，使用以下命令下载公钥：

   sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 871920D1991BC93C

最后，使用以下命令将公钥导入系统：

   sudo apt-key add /path/to/downloaded/key

注意替换上述命令中的/path/to/downloaded/key为您下载的公钥文件的路径。

完成上述步骤后，再次运行apt-get update应该就不会出现上述错误了。

Failed to add entry for user

回答: "Failed to add entry for user"错误通常是由于在添加samba用户时出现问题导致的。根据引用\[1\]和引用\[2\]的内容，可能的原因是在添加samba用户之前没有在Linux系统中创建相应的用户。在配置samba之前，需要先在Linux系统中创建一个用户，并确保该用户存在于系统中。然后，使用smbpasswd命令将该用户添加为samba用户。另外，还需要确保在smb.conf文件中正确配置了共享文件夹的路径和权限。如果仍然遇到问题，可以尝试参考引用\[3\]中提到的安装samba和创建系统用户的步骤。
#### 引用[.reference_title]
- *1* *3* [CentOS | samba 共享文件 | Failed to add entry for user | 防火墙配置](https://blog.csdn.net/stone_fall/article/details/108941349)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [Ubuntu14.04利用samba实现Linuxwindows共享出现Failed to add entry for user linux.问题的解决方案](https://blog.csdn.net/qq_21148843/article/details/46957981)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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