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ubuntu系统下的用户管理(新建,查看,删除)
一、添加新用户
#$是普通管员,#是系统管理员,在Ubuntu下,root用户默认是没有密码的,因此也就无法使用(据说是为了安全)。
#想用root的话,得给root用户设置一个密码,密码要求不严格:
sudo passwd root #然后登录时用户名输入root,再输入密码就行了。可以切换用户su root来登录
#ubuntu建用户最好用adduser,虽然adduser和useradd是一样的在别的linux糸统下,但是我在ubuntu下用useradd时,并没有创建同名的用户主目录。
#例子:
adduser user1 #这样它就会自动创建用户主目录,创建用户同名的组。
root@ubuntu:~# sudo adduser linux New password: 设置密码无强弱度要求 BAD PASSWORD: is too simple Retype new password: passwd: password updated successfully Changing the user information for linux Enter the new value, or press ENTER for the default Full Name []: 填写用户信息可不填写 Room Number []: Work Phone []: Home Phone []: Other []: Is the information correct? [Y/n] y 询问你输入的信息是否正确 #到此,用户添加成功。
#如果需要让此用户有root权限,执行命令:
root@ubuntu:~# sudo vim /etc/sudoers #修改文件如下:
User privilege specification root ALL=(ALL) ALL linuxidc ALL=(ALL) ALL 保存退出,linuxidc用户就拥有了root权限。
二、查看用户列表:
#ubuntu查看用户列表
cat /etc/passwd 三、删除:
#终端方法:以下用linux代替想要删除的用户账户
#在root用户下:
userdel -r linux #查看是否正确删除用户:
id linux #在普通用户下:
sudo userdel -r linux