Refresh a simple passwd file for linux commands

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**************************************** ******************************** ************************************* Original works, you are welcome to repost the blog from deep blue. You must specify the source when you repost the blog. Otherwise, you will be held legally liable for copyright. Deep Blue blog: http://blog.csdn.

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Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyright will be held legally responsible.

Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/39924845

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Passwd file

(1) File Content

Password File, which contains the following content:

Uid: the unique identifier of the user. 0 is the identifier of the root user.

Path: the user name and User Identifier are stored in the/etc/passwd (password) file.

Home Directory: stores the Home Directory of each user, including the first program executed by the user, such as shell

(2) operation demonstration

[Root @ xckydb etc] # more/etc/passwd

Field 1: User Name

Field 2: if it is set to x, password verification is required for login. If it is null, password verification is not required for login.

Field 3: uid

Field 4: gid

Field 5: Comment

Field 6: user's home directory

Field 7: The program that the user first executes after Logon

**************************************** ******************************** ***************************************

Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyright will be held legally responsible.

Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/39924845

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