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何在Linux环境下添加Oracle用户信息呢？下文对Oracle用户信息的添加方法作了详细的介绍，希望可以让您对Oracle用户信息方面有更深的认识。

创建一个用户组oinstall： 
# groupadd oinstall

创建一个用户组dba： 
# groupadd dba

创建一个用户主目录/u01/oracle： 
# mkdir -p /u01/oracle

创建用户oracle 到主组oinstall，副组dba，主目录/u01/oracle： 
# useradd -g oinstall -G dba -d /u01/oracle oracle

如果oracle用户已经存在则： 
# usermod -g oinstall -G dba -d /u01/oracle oracle

查看用户oracle的添加情况 
# id oracle

查看oracle所属的组: 
# groups oracle

把/u01的所有者改为oracle
# chown -R oracle:oinstall /u01

以上Linux环境下添加Oracle用户信息的方法介绍。

[root@websvr01 ~]# groupadd ftpusrs
[root@websvr01 ~]#

[root@websvr01 ~]# useradd -d /home/ftp01 ftp_usr
[root@websvr01 ~]#

[root@websvr01 ~]# passwd ftp_usr
Changing password for user ftp_usr.
New UNIX password:
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[root@websvr01 ~]#

[root@websvr01 ~]# usermod -s /sbin/nologin ftp_usr  //限定用户ftp_usr不能telnet，只能ftp
[root@websvr01 ~]#

[root@websvr01 ~]# usermod -s /sbin/bash ftp_usr //用户ftp_usr恢复正常
[root@websvr01 ~]#

[root@websvr01 ~]# usermod -d /ftp_usr ftp_usr //尽管根目录下没有ftp_usr这个目录！！！
[root@websvr01 ~]# ll /
total 162
drwxr-xr-x 2 root root 4096 May 3 13:38 bin
drwxr-xr-x 4 root root 1024 May 2 11:57 boot
drwxr-xr-x 8 root root 6480 May 3 12:30 dev
drwxr-xr-x 88 root root 12288 May 3 15:11 etc
drwxr-xr-x 3 root root 4096 May 3 15:03 home
drwxr-xr-x 2 root root 4096 Feb 21 2005 initrd
drwxr-xr-x 12 root root 4096 May 3 13:37 lib
drwx------ 2 root root 16384 May 2 07:53 lost+found
drwxr-xr-x 4 root root 4096 May 3 12:30 media
drwxr-xr-x 2 root root 4096 Jul 25 2008 misc
drwxr-xr-x 3 root root 4096 May 2 13:04 mnt
drwxr-xr-x 2 root root 4096 Feb 21 2005 opt
dr-xr-xr-x 67 root root 0 May 3 08:28 proc
drwxr-x--- 14 root root 4096 May 3 13:47 root
drwxr-xr-x 2 root root 12288 May 3 13:38 sbin
drwxr-xr-x 2 root root 4096 May 2 11:53 selinux
drwxr-xr-x 2 root root 4096 Feb 21 2005 srv
drwxr-xr-x 9 root root 0 May 3 08:28 sys
drwxrwxrwt 5 root root 4096 May 3 13:46 tmp
drwxr-xr-x 15 root root 4096 May 2 12:03 usr
drwxr-xr-x 22 root root 4096 May 2 12:10 var
[root@websvr01 ~]#