GID文件也类似。
If the script finds a line in the UID or GID file for a user or group that does not exist on the system, the line is simply skipped.
如果脚本在UID或GID文件中找到的用户或组在系统中不存在，那就跳过该行。
This is because the system stores the UID and GID number for the owner and group on each file rather than storing a user or group name.
这是因为系统在每个文件中存储的是所有者和组的UID和GID编号，而不是用户或组名称。
If a new user or group is created with the old UID 203 or the old GID 7, then this new user or group will become the owner and group of every file on the system that the user previously owned.
如果新用户或组是使用旧uid 203或旧GID7创建的，则此新用户或组将成为系统上该用户以前拥有的每个文件的所有者和组。
Each file stored on the LUN has the file owner and group stored as UID and GID Numbers.
存储在LUN上的每个文件都有一个文件所有者和一个组，保存为UID和GID编号。
You supply the script with two input files: a file that contains the updated UID information, and a file that contains the updated GID information.
提供给脚本两个输入文件：包含已更新的UID信息的文件，以及包含已更新的GID信息的文件。
File ownership in AIX is determined by the UID, and group file permissions are determined by the GID.
AIX中的文件所有权是由UID确定的，组文件权限是由GID确定的。
Now, look at the file permissions, because you changed the gid.
由于更改了GID，现在查看一下文件的权限。
Setting the set-uid and set-gid bit on the program file pointed.
设置指定程序文件的set - uid和set - gid位。
Your two files now have the group permission 7 — the previous GID for the group security. You must change the file permissions back to the group security to fix these permissions.
您的两个文件现在的组权限为7，即组security的GID。
The third field (300) is the UID, and the fourth field (350) is the GID of the primary group you're a member of. You can gather more information about the GID by greping it from the /etc/group file
第三个字段 (300)是UID，第四个字段 (350) 是您所属的主组的GID。
For now, note that the only users shown in this file are mj and TB, their user IDs (UID) and group IDs (GID) are 500 and 501, and their home directories match their usernames.
因为现在，注意在这一个文件中显示的唯一的使用者是mj和tb，他们的使用者身份证(uid)和组身份证(GID)是500和501，而且他们的家目录相配他们的使用者名称。
For now, note that the only users shown in this file are mj and TB, their user IDs (UID) and group IDs (GID) are 500 and 501, and their home directories match their usernames.
因为现在，注意在这一个文件中显示的唯一的使用者是mj和tb，他们的使用者身份证(uid)和组身份证(GID)是500和501，而且他们的家目录相配他们的使用者名称。
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