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其他
7z
pwck - Linux命令大全 - 笔下光年
网站首页
pwck
用来验证系统认证文件内容和格式的完整性 ## 补充说明 **pwck命令** 用来验证系统认证文件`/etc/passwd`和`/etc/shadow`的内容和格式的完整性。 ### 语法 ```shell pwck(选项)(参数) ``` ### 选项 ```shell -q:仅报告错误信息; -s:以用户id排序文件“/etc/passwd”和“/etc/shadow”; -r:只读方式运行指令; -R:在指定的chroot环境下检查密码文件。 ``` ### 参数 * 密码文件:指定密码文件的路径; * 影子文件:指定影子文件的路径。 ### 实例 ```shell pwck user 'ftp': directory '/var/ftp' does not exist pwck: no changes ``` 执行`pwck`命令后显示了一些警告,提示有用户`lp`的主目录 `/var/spool/lpd`不存在。为了解决这个问题,你有几个选项: 1. 如果你确定这些用户不会被使用,你可以考虑使用`userdel`命令来删除这些用户。 2. 如果这些用户需要被使用,你应该创建相应的目录。例如,你可以使用以下命令: ```shell # 创建目录 sudo mkdir /var/ftp # 将目录的所有权赋给相应的用户 sudo chown ftp:ftp /var/ftp ``` 3. 如果这些用户对应的软件包还未安装,你可以考虑安装它们。软件包管理器(如`yum`或`apt`)通常会自动创建必要的用户和目录。
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