The Data Structure that Describes a User
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The functions and data structures for accessing the system user
database are declared in the header file `pwd.h'.
- Data Type: struct passwd
The `passwd' data structure is used to hold information about
entries in the system user data base. It has at least the
following members:
`char *pw_name'
The user's login name.
`char *pw_passwd.'
The encrypted password string.
`uid_t pw_uid'
The user ID number.
`gid_t pw_gid'
The user's default group ID number.
`char *pw_gecos'
A string typically containing the user's real name, and
possibly other information such as a phone number.
`char *pw_dir'
The user's home directory, or initial working directory.
This might be a null pointer, in which case the
interpretation is system-dependent.
`char *pw_shell'
The user's default shell, or the initial program run when the
user logs in. This might be a null pointer, indicating that
the system default should be used.
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