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The GNU C Library

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29.13 User Database

This section describes how to search and scan the database of registered users. The database itself is kept in the file `/etc/passwd' on most systems, but on some systems a special network server gives access to it.

29.13.1 The Data Structure that Describes a User  What each user record contains.
29.13.2 Looking Up One User  How to look for a particular user.
29.13.3 Scanning the List of All Users  Scanning the list of all users, one by one.
29.13.4 Writing a User Entry  How a program can rewrite a user's record.


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