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36.9 Password Database Functions

Octave’s password database functions return information in a structure with the following fields.

name

The user name.

passwd

The encrypted password, if available.

uid

The numeric user id.

gid

The numeric group id.

gecos

The GECOS field.

dir

The home directory.

shell

The initial shell.

In the descriptions of the following functions, this data structure is referred to as a pw_struct.

Built-in Function: pw_struct = getpwent ()

Return a structure containing an entry from the password database, opening it if necessary. Once the end of the data has been reached, getpwent returns 0.

Built-in Function: pw_struct = getpwuid (uid).

Return a structure containing the first entry from the password database with the user ID uid. If the user ID does not exist in the database, getpwuid returns 0.

Built-in Function: pw_struct = getpwnam (name)

Return a structure containing the first entry from the password database with the user name name. If the user name does not exist in the database, getpwname returns 0.

Built-in Function: setpwent ()

Return the internal pointer to the beginning of the password database.

Built-in Function: endpwent ()

Close the password database.