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# posix_getpwuid

posix_getpwuid -- Return info about a user by user id

## Description

`array posix_getpwuid`(int uid);

Returns an associative array containing information about a user referenced by a numeric user ID, passed in the `uid` parameter.

The array elements returned are:

Table 1. The user information array

Element | Description
--- | ---
name | The name element contains the username of the user. This is a short, usually less than 16 character "handle" of the user, not her real, full name.
passwd | The passwd element contains the user's password in an encrypted format. Often, for example on a system employing "shadow" passwords, an asterisk is returned instead.
uid | User ID, should be the same as the `uid` parameter used when calling the function, and hence redundant.
gid | The group ID of the user. Use the function posix_getgrgid() to resolve the group name and a list of its members.
gecos | GECOS is an obsolete term that refers to the finger information field on a Honeywell batch processing system. The field, however, lives on, and its contents have been formalized by POSIX. The field contains a comma separated list containing the user's full name, office phone, office number, and home phone number. On most systems, only the user's full name is available.
dir | This element contains the absolute path to the home directory of the user.
shell | The shell element contains the absolute path to the executable of the user's default shell.

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