Quick Reference Cards

A reference card or quick reference card is a concise bundling of common syntactic rules and idioms of a particular formal language. It serves as an ad hoc memory aid for an experienced user.
In spite of what the name reference card suggest, the term only tends to be used in the narrow context of programming languages or markup languages. However, this concept is now being adopted to portray concise information in many other fields.

Category	Download link		Comment	Author/Source
	PDF	size
Web & Mark-up	JSP Syntax	71,5 K	Sun made a convenient syntax reference for their Java Server Pages technology.	Sun Microsystems
	VisiBone Web Designer's HTML Card	13,1 M	Amazing complete HTML reference. This 4 paged, full-coloured reference is a must-have for any web designer!	Visibone Inc.
	JSP Quick Reference Card	27,7 K	Java Server Pages (JSP) technology allows web developers and designers to rapidly develop and easily maintain, information-rich, dynamic web pages that leverage existing business systems. As part of the JavaTM family, JSP technology enables rapid development of web-based applications that are platform independent. JavaServer Pages technology separates the user interface from content generation enabling designers to change the overall page layout without altering the underlying dynamic content.	Allaire corporation
	Javascript Quick Reference Card	121 K	JavaScript is an interpreted programming or script language from Netscape. It is somewhat similar in capability to Microsoft's Visual Basic, Sun's Tcl, the UNIX-derived Perl, and IBM's Rexx.	BrandsPatch LLC
	Cascading Style Sheets 1.0	78 K	Cascading Style Sheet level 1 (CSS1) is a simple style sheet mechanism that allows authors and readers to attach style (e.g. fonts, colors and spacing) to HTML and XML documents. This Quick Reference contains a list of CSS properties, units and pseudo-classes.	deepx
Delphi	Delphi Technical Reference Card 7.20	13,8 K	Delphi is the most productive, RAD tool on the market today. It is both more visual and much faster than Visual Basic, with the power of C++ and has the fastest 32bit compiler that there is on the market today.	Gulf Coastal Software
Ada	Ada Reference Card	31,2 K	Ada is a Pascal-like programming language. In addition to traditional programming languages it includes a complete facility for the support of real-time, concurrent programming. This card is an overview of attributes, pragma's and the standard Ada libraries.	DAINA
	Ada Syntax Card	29,7 K	The Ada syntax specification.
C	Updated! C Reference Card (ANSI) 2.2	10,4 K	Great QR-card! Anyone who 's involved in ANSI C programming should have this on his desk.	Joseph H. Silverman
New! C#	Core C# and .NET Quick Reference	51 K	This PDF file contains two pages of C# reference information.	Stephen C. Perry.
C++	Updated! STL Quick Reference 1.29	310 K	This one really is a master peace. It's a great summary of the Standard Template Library with clear examples of how to use it.	Yotam Medini
	Microsoft Foundation Classes (MFC) Quick Reference	166 K	If you are developing applications in Visual C++, then you surely know all about MFC. An overview of the class hierarchy can be consulted on this reference card.	Jialong He
CVS	CVS Quick Reference Card	177 K	CVS is the Concurrent Versions System, the dominant open-source network-transparent version control system.  CVS is useful for everyone from individual developers to large, distributed teams. You can find more information on http://www.cvshome.com.	Andrew Ford
	CVS Quick Reference Card (LG)	91 K		Laurent Gregoire
DOC++	DOC ++ Reference Card	104 K	DOC++ is a documentation system for C/C++ and Java generating both, LaTeX output for high quality hardcopies and HTML output for sophisticated online browsing of your documentation. The documentation is extracted directly from the C++ header or Java class files.	Steven Gould
New! Doxygen	Doxygen Quick Reference	112 K	Doxygen is a documentation generator for C++, C, Java, Objective-C, Python, IDL (Corba and Microsoft flavours) and to some extent PHP, C#, D and ActionScript. It runs on most Unix systems as well as on Windows and Mac OS X.	Paul W. Joireman
Java	JAVA Quick Reference	41 K	Java is a high-level programming language developed by Sun Microsystems. Java was originally called OAK, and was designed for handheld devices and set-top boxes. Oak was unsuccessful so in 1995 Sun changed the name to Java and modified the language to take advantage of the burgeoning World Wide Web. Java is an object-oriented language similar to C++, but simplified to eliminate language features that cause common programming errors. Java source code files (files with a .java extension) are compiled into a format called byte code (files with a .class extension), which can then be executed by a Java interpreter. Compiled Java code can run on most computers because Java interpreters and runtime environments, known as Java Virtual Machines (VMs), exist for most operating systems, including UNIX, the Macintosh OS, and Windows. Byte code can also be converted directly into machine language instructions by a just-in-time compiler (JIT). Java is a general purpose programming language with a number of features that make the language well suited for use on the World Wide Web. Small Java applications are called Java applets and can be downloaded from a Web server and run on your computer by a Java-compatible Web browser, such as Netscape Navigator or Microsoft Internet Explorer.	Jialong He
	JAVA Programming Guide - Quick Reference	104 K		Pinnacle Software Solutions
	JUnit Quick Reference	203 K	JUnit is an open source testing framework for Java. It provides a very simple way to express the way you intend your code to work. By expressing your intentions in code, you can use the JUnit test runners to verify that your code behaves according to your intentions.	Delphi Consultants
	SAX 2.0 for Java (Core)	38 K	SAX is the Simple API for XML, originally a Java-only API. SAX was the first widely adopted API for XML in Java, and is a “de facto” standard. The quick reference summarises the Java classes and interfaces at the core of the SAX API.	deepx
	SAX 2.0 for Java (Extensions and Helpers)	40 K	In addition to the core SAX API, additional Java packages exist which provide "helper" classes and extensions to SAX2 facilities. A conformant SAX driver won't necessarily support the latter. The Quick Reference contains a description of all the Classes and Interfaces from the SAX Helpers and Extensions packages.
	EJB 2.0 Matrix	96 K	The Enterprise JavaBeans (EJB) component model simplifies the development of middleware applications by providing automatic support for services such as transactions, security, database connectivity, and more. These two QRC's contributed by Eileen Saur give a valuable overview of the EJB interfaces and EJB exceptions.	Eileen Sauer
	Exception Handling in EJB 2.0	29 K
Perl	mod_perl Quick Reference Card	153 K	Andrew Ford made many QR-cards which are much appreciated by Linux/Unix users. They became so popular that you can buy them in published form. Especially this Perl card has become quite popular.	Andrew Ford
	PERL Win32 Quick Reference	36 K	An overview of Windows-specific functions and API-calls to use in PERL, such as accessing internet, Registry, Event Log, Service..	Jialong He
PHP	New! PHP Cheat Sheet	136 K	PHP is an HTML-embedded scripting language. Much of its syntax is borrowed from C, Java and Perl with a couple of unique PHP-specific features thrown in. The goal of the language is to allow web developers to write dynamically generated pages quickly.	Dave Child
	PHP 4 Reference Card	124 K		Steven Gould
New! Python	New!Python 2.4 Quick Reference Card	1,26 M	Python is a dynamic object-oriented programming language that can be used for many kinds of software development. It offers strong support for integration with other languages and tools, comes with extensive standard libraries, and can be learned in a few days. This Python quick reference is a real gem. With its 18 pages it provides the Python programmer with a extremely valuable and clear reference.	Laurent Pointal
L i n u x   & U n i x	Apache Quick Reference Card	233 K	A great card for all the web masters who run Apache web servers.	Andrew Ford
	The One Page Linux Manual	96 K	A summary of useful Linux commands	Squadron
	Linux Security Quick Reference Guide	69,5 K	Very complete security guide.	Dave Wreski & Benjamin Thomas
	UNIX commands reference card	11,7 K	After three decades of use, the UNIX computer operating system from Bell Labs is still regarded as one of the most powerful, versatile, and flexible operating systems (OS) in the computer world. Its popularity is due to many factors, including its ability to run a wide variety of machines, from micros to supercomputers, and its portability. All of which led to its adoption by many manufacturers.	University Technology Information Services
	TeX Reference Card	171 K	TeX is a typesetting system written by Donald E. Knuth, who says in the Preface to his book on TeX that it is "intended for the creation of beautiful books - and especially for books that contain a lot of mathematics". It is a fully programmable macro language used to specify how a document should be typeset. High level features for optical mark-up, as represented by Plain TeX, allow one to build additional levels leading to full logical mark-up.	Joseph H. Silverman
	Updated! AMSTeX Reference Card 1.3	110 K	At the moment, AMSTeX is one of the most widespread macro packages for logical mark-up. This package, introduced by the American Mathematical Society (AMS) is built on top of Plain TeX to greater or lesser extents and the user can use the optical mark-up of Plain TeX in addition to logical mark-up if desired. This results in the effect that the author can use a mixture of structural information and explicit layout information.
	vi Reference Card (HP)	5,05 M	The VI editor is a screen-based editor used by many Unix users. The VI editor has powerful features to aid programmers, but many beginning users avoid using VI because the different features overwhelm them.	HP
	Vi Reference Card	57 K		DonaldJ.Bindner
	Updated! vi Quick Reference	27 K		Unknown
	VIM Quick Reference Card	100 K	VIM (Vi Improved) is an almost compatible version of the UNIX editor Vi. Many new features have been added: multi level undo, syntax highlighting, command line history, on-line help, filename completion, block operations, etc.	Laurent Gregoire
	XEmacs Reference Card	79,4 K	XEmacs is a highly customizable open source text editor and application development system. It is related to other versions of Emacs, in particular GNU Emacs. Its emphasis is on modern graphical user interface support and an open software development model, similar to Linux. XEmacs has an active development community numbering in the hundreds, and runs on Windows 95 and NT, Linux and nearly every other version of Unix in existence	Stephen Gildea
	GNU Calc Reference Card	95,0 K	GNU Calc is an advanced calculator and mathematical tool that runs as part of the GNU Emacs environment. Very roughly it is based on the HP-28/48 series of calculators.	Dave Gillespie and Stephen Gildea
	Bash Quick Reference	380 K	Bash (The Bourn Again Shell) is the shell of the GNU operating system. Bash is an sh-compatible shell that incorporates useful features from the Korn Shell (ksh) and C Shell (csh). It is intended to conform to the IEEE POSIX P1003.2/ISO 9945.2 Shell and Tools standard. It offers functional improvements over sh for both programming and interactive use; these include command line editing, unlimited size command history, job control, shell functions and aliases, indexed arrays of unlimited size, and integer arithmetic in any base from two to sixty-four. In addition, most sh scripts can be run by Bash without modification.	Arnold Robbins
	New! GDB Quick Reference	84 K	Most flavours of Linux come with the GNU debugger, or gdb to the shell. Gdb lets you see the internal structure of a program, print out variable values, set breakpoints and single step through source code. It makes an extremely powerful tool for fixing problems in program code.	Roland H. Pesch
	LINUX System Call Quick Reference		Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world. Developed under the GNU General Public License , the source code for Linux is freely available to everyone.	Jialong He
	LINUX Admin Quick Reference
New!Ruby	New! Ruby Language QuickRef	17,1 K	Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.	Ryan Davis with Austin Ziegler
	New! Ruby Library QuickRef.pdf	18,6 K
SVN	Subversion Quick Reference Card	56 K	The goal of the Subversion project is to build a version control system that is a compelling replacement for CVS in the open source community. Subversion is meant to be a better CVS, so it has most of CVS's features. Generally, Subversion's interface to a particular feature is similar to CVS's, except where there's a compelling reason to do otherwise.	Cezary Sobaniec
	New! Cheat Sheet Subversion	190 K	Very complete reference sheet for SVN users.	Lucas Baltes
SQL	MySQL-4.02a	33 K	The MySQL (TM) software delivers a very fast, multi-threaded, multi-user, and robust SQL (Structured Query Language) database server. The Quick Reference summarises the MySQL reference manual, which documents MySQL Version 4.0.2-alpha.	deepx
	Oracle Server Architecture	413 K	Oracle Corporation is the world's leading supplier of software for information management, and the world's second largest independent software company. Oracle's relational database was the world's first to support the Structured Query Language, now an industry standard. Today, the Oracle DBMS is supported on over 80 different operating environments, ranging from IBM mainframes and DEC VAX minicomputers, to UNIX-based minicomputers and Windows NT platforms. All 10 of the world's largest Web sites- from Amazon.com to Yahoo! - use Oracle.	Dr. Lars Ditzel
	ORACLE Server 8i Quick Reference Card	275 K
UML	UML Quick Reference Card	45,0 K	The Unified Modeling Language™ (UML) is the industry-standard language for specifying, visualizing, constructing, and documenting the artefacts of software systems. It simplifies the complex process of software design, making a "blueprint" for construction.	Laurent Gregoire
	UML Reference Card	31,3 K	This card is based on the UML-website of Allen I. Holub	Allen  I. Holub
New! VB.NET	VB.NET Quick Reference	51 K	This card is great for beginners or developers that switch between a lot of languages. It shows examples of variable declaration ccde, loops , branching, operators and error handling.	Kellerman Software
XML	XML Syntax Quick Reference	87,8 K	The Extensible Mark-up Language (XML) is the universal format for structured documents and data on the Web	Mulberry Technologies, Inc.
	XSLT and XPath Quick Reference	93,4 K	XSLT is a language for transforming XML documents into other XML documents. XSLT is designed for use as part of XSL, which is a style sheet language for XML. In addition to XSLT, XSL includes an XML vocabulary for specifying formatting. XSL specifies the styling of an XML document by using XSLT to describe how the document is transformed into another XML document that uses the formatting vocabulary. XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer.
	XML - Data Structures	19,7 K	EXtensible Mark-up Language (XML) is a simple, very flexible text format derived from SGML (ISO 8879). Originally designed to meet the challenges of large-scale electronic publishing, XML is also playing an increasingly important role in the exchange of a wide variety of data on the Web.	D Vint Productions
	XML - Data Types	38,8 K
	Extensible Stylesheet Language (XSL) 1.0	40 K	XSL is a language for expressing style sheets for XML documents. It consists of two parts: a language for transforming XML documents, and an XML vocabulary for specifying formatting semantics. The Quick Reference summarises the latter.	deepx
	XSL Transformations (XSLT) 1.0	90 K	XSLT is a language for transforming XML documents into other XML documents. The Quick Reference contains all XSLT elements and functions.
	XML Path Language 1.0	91 K	XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer. This Quick Reference contains Location Paths Expressions and the Core Function Library.