ubuntu下新增用户

[whdugh]

在看鸟哥的私房菜，按书上的新建了一个用户，输入useradd命令，但是在/home目录下没有这个用户，这个是怎么回事啊

用grep查看时，如下：

[ljc007]

-d, --home HOME_DIR The new user will be created using HOME_DIR as the value for the user¡¯s login directory. The default is to append the LOGIN name to BASE_DIR and use that as the login directory name. The directory HOME_DIR does not have to exist but will not be created if it is missing.

[whdugh]

引用 1 楼 u010957746 的回复:

useradd xxxxxx -u -g 把uid和gid加上试试、

额，为何用adduser就可以新建一个用户啊？新建了vbird1这个用户，但是切换到root时，出现下面的错误

[FeelTouch Labs]

用户没有加入到sudo的配置文件里。可以利用 vi sudo 进行编辑加入。 在打开的配置文件中，找到root ALL=(ALL) ALL，在下面添加一行 xxx ALL=(ALL) ALL 其中xxx是你要加入的用户名称。然后保存就可以了。

[loong0306]

引用 3 楼 whdugh 的回复:

[quote=引用 1 楼 u010957746 的回复:] useradd xxxxxx -u -g 把uid和gid加上试试、

额，为何用adduser就可以新建一个用户啊？新建了vbird1这个用户，但是切换到root时，出现下面的错误 [/quote]4楼的哥们应该说的对，楼主您看下。

[loong0306]

useradd xxxxxx -u -g 把uid和gid加上试试、

[whdugh]

引用 2 楼 ljc007 的回复:

-d, --home HOME_DIR
The new user will be created using HOME_DIR as the value for the user¡¯s login directory. The default is to
append the LOGIN name to BASE_DIR and use that as the login directory name. The directory HOME_DIR does not
have to exist but will not be created if it is missing.

版主，我是想在/home目录下创建vbird2用户，加了参数-d还是不行，在home目录下没有文件夹，求指点，谢谢

[ljc007]

-d /home/vbird2 -m -d, --home HOME_DIR The new user will be created using HOME_DIR as the value for the user¡¯s login directory. The default is to append the LOGIN name to BASE_DIR and use that as the login directory name. The directory HOME_DIR does not have to exist but will not be created if it is missing. -m, --create-home The user’s home directory will be created if it does not exist. The files contained in SKEL_DIR will be copied to the home directory if the -k option is used, otherwise the files contained in /etc/skel will be used instead. Any directories contained in SKEL_DIR or /etc/skel will be created in the user’s home directory as well. The -k option is only valid in conjunction with the -m option. The default is to not create the directory and to not copy any files.

[罗万千]

默认配置文件你看看是否有问题

[IT界的厨师]

引用 7 楼 ljc007 的回复:

-d /home/vbird2 -m -d, --home HOME_DIR The new user will be created using HOME_DIR as the value for the user¡¯s login directory. The default is to append the LOGIN name to BASE_DIR and use that as the login directory name. The directory HOME_DIR does not have to exist but will not be created if it is missing. -m, --create-home The user’s home directory will be created if it does not exist. The files contained in SKEL_DIR will be copied to the home directory if the -k option is used, otherwise the files contained in /etc/skel will be used instead. Any directories contained in SKEL_DIR or /etc/skel will be created in the user’s home directory as well. The -k option is only valid in conjunction with the -m option. The default is to not create the directory and to not copy any files.

版主果然是大牛

[剑指七星]

useradd -m -d /home/vbird2 -s /usr/bin/bash -g gid/gname vbird2 -s:用户的shell类型，要自己确定shell的位置，可以用which bash查看位置； -d:用户的家目录，请自行选择位置。 -g:用户组名或组id 另外：楼主第一幅图中是vbird1用户已经存在了

[yn_wolf]

那是因为useradd 默认不加-m参数，只会建立用户而不会建立相对应的用户目录（其实查看/etc/passwd文件是可以看到用户对应的目录的，只不过没有建立而已）。没加-m参数的话，后面需要手动建立目录，mkdir /home/vbird1 ，usermod -d /home/vbird1 vbird1 就可以了

[yn_wolf]

引用 11 楼 yn_wolf 的回复:

那是因为useradd 默认不加-m参数，只会建立用户而不会建立相对应的用户目录（其实查看/etc/passwd文件是可以看到用户对应的目录的，只不过没有建立而已）。没加-m参数的话，后面需要手动建立目录，mkdir /home/vbird1 ，usermod -d /home/vbird1 vbird1 就可以了

对了要先chown -R username:username /home/username (其实改完之后usermod 也没有必要了）