Free user software for linux

User::Utmp is a Perl access to utmp- and utmpx-style databases.

SYNOPSIS

use User::Utmp qw(:constants :utmpx);
@utmp = getutx();
or, using utmp:
use User::Utmp qw(:constants :utmp);
@utmp = getut();

UNIX systems record information about current and past logins in a user accounting database. This database is realized by two files: File utmpx contains a record of all users currently logged onto the system, while file wtmpx contains a record of all logins and logouts. Some systems (such as HP-UX and AIX) also maintain a third file containing failed login attempts. The information in these files is used by commands such as who(1), last(1), write(1), or login(1).

The exact location of these files in the file system varies between operating systems, but they are typically stored in directories like /var/adm, /var/run, or /var/log. The Single UNIX Specification specifies an API for reading from and writing to these files.

The utmpx file format and functions were derived from the older utmp file format and functions. For compatibility reasons, many systems still support the utmp functions and maintain utmp database files. It is recommended, however, to use the utmpx functions instead of the obsolete utmp functions.
The User::Utmp module provides functions for reading and writing utmpx and utmp files by providing a Perl interface to the system functions.

Utmpx and utmp records are represented in Perl by hash references. The hash keys are the names of the elements of the utmpx structure. For details consult utmpx(4) (utmpx(5) on some systems). The hash values are (mostly) the same as in C.

As an example, here is a typical record as it may be returned by the getutxent(), getutxid(), getutxline() or the corresponding utmp functions:

{ut_tv => {tv_sec => 1141256698, tv_usec => 0},
ut_line => "ttyp0",
ut_time => 1141256698,
ut_id => "p0",
ut_host => ":0.0",
ut_exit => {e_termination => 0, e_exit => 2},
ut_pid => 4577,
ut_user => "mxp",
ut_type => USER_PROCESS,}

The array returned by the getutx() and getut() functions is composed of hash references like this.

qmail-masq-user provides a program to change From: field of emails to any combinations of user/domain.

Originally based off the program qmail-masq, qmail-masq-user uses qmail and qmail-qfilter to change the From: address of outgoing emails to almost any combination of username, domain, or both.

The configuration allows you to specify domain catch-alls, user catch-alls, email catch-alls, specific combinations of users and/or domains, and much more.

INSTALLATON:

1) install and configure qmail

2) install qmail-qfilter

3) copy qmail-masq-user.conf.example to /etc/qmail-masq.conf and modify it for your
needs (follow the instructions in the file)

# cp qmail-masq-user.conf.example /etc/qmail-masq-user.conf
# chmod 644 /etc/qmail-masq-user.conf
# vi /etc/qmail-masq-user.conf

4) run the install.pl included installer which will set up the files exactly
to be able to run them

# perl install.pl

4) all is done, you dont have to restart qmail, try it sending some email
and enjoy it!

Note: make sure you are root when you install everything!

User::grent is an interface to Perls built-in getgr*() functions.

SYNOPSIS

use User::grent;
$gr = getgrgid(0) or die "No group zero";
if ( $gr->name eq wheel && @{$gr->members} > 1 ) {
print "gid zero name wheel, with other members";
}

use User::grent qw(:FIELDS);
getgrgid(0) or die "No group zero";
if ( $gr_name eq wheel && @gr_members > 1 ) {
print "gid zero name wheel, with other members";
}

$gr = getgr($whoever);

This modules default exports override the core getgrent(), getgruid(), and getgrnam() functions, replacing them with versions that return "User::grent" objects. This object has methods that return the similarly named structure field name from the Cs passwd structure from grp.h; namely name, passwd, gid, and members (not mem). The first three return scalars, the last an array reference.

You may also import all the structure fields directly into your namespace as regular variables using the :FIELDS import tag. (Note that this still overrides your core functions.) Access these fields as variables named with a preceding gr_. Thus, $group_obj->gid() corresponds to $gr_gid if you import the fields. Array references are available as regular array variables, so @{ $group_obj->members() } would be simply @gr_members.

The getpw() function is a simple front-end that forwards a numeric argument to getpwuid() and the rest to getpwnam().

To access this functionality without the core overrides, pass the use an empty import list, and then access function functions with their full qualified names. On the other hand, the built-ins are still available via the CORE:: pseudo-package.

Group User Folder provides a Zope Product that manages Groups of Users.
GroupUserFolder is a kind of user folder that provides a special kind of user management. Some users are "flagged" as GROUP and then normal users will be able to belong to one or serveral groups.
Enhancements:
- Fix _getMemberIds for LDAPUserFolder 2.7 when groups are stored in LDAPUF [encolpe]
- Got rid of zLOG in favor of logging. [stefan]

GIMP User Manual project is a user manual for the GIMP. It is written for the GIMP Help Browser, but can produce help pages for other formats as well.
Enhancements:
- New content (incl. spelling and grammar fixes) for German, French, Italian, Norwegian, Russian, Spanish and Korean
- The PDF version of the manual is now generated using dblatex
- Lots of bug fixes

Authenticated User Community project is a CGI-based intranet system for K-12 settings.

AUC (Authenticated User Community) is an intranet system designed for use in an educational organization but is also useful in many other settings.

It offers the ability for users to have a uniform web-based interface to discussion forums, e-mail (similar to hotmail, etc.), file management, and a searchable user database.

Also, "Interactive Classrooms" provide a means for students and teachers to have a web-based extension to their in-class interaction.

The system runs from a C-based monolithic CGI script. MySQL is used for database storage. Also, the web-based mail client supports MIME parts/attachments, IMAP, mbox, and multiple mail folders.

TaskFreak! project is a simple but efficient web based task manager written in PHP.
Main features:
- GTD compliant (learn more about GTD)
- easy setup with MySQL or SQLite (PHP4 and PHP5 compatible)
- simple and easy to use (outrageously user friendly)
- order tasks by priority and deadline, organize by project and context
- absolutely free & open source