delete



delete

NAME
SYNOPSIS
DESCRIPTION
KEYWORDS

___________________________

NAME

itcl::delete − delete things in the interpreter

SYNOPSIS

itcl::delete option ?arg arg ...? ___________________________

DESCRIPTION

The delete command is used to delete things in the interpreter. It is implemented as an ensemble, so extensions can add their own options and extend the behavior of this command. By default, the delete command handles the destruction of namespaces.

The option argument determines what action is carried out by the command. The legal options (which may be abbreviated) are:
delete class
name ?name...?

Deletes one or more [incr Tcl] classes called name. This deletes all objects in the class, and all derived classes as well.

If an error is encountered while destructing an object, it will prevent the destruction of the class and any remaining objects. To destroy the entire class without regard for errors, use the "delete namespace" command.

delete object name ?name...?

Deletes one or more [incr Tcl] objects called name. An object is deleted by invoking all destructors in its class hierarchy, in order from most- to least-specific. If all destructors are successful, data associated with the object is deleted and the name is removed as a command from the interpreter.

If the access command for an object resides in another namespace, then its qualified name can be used:

itcl::delete object foo::bar::x

If an error is encountered while destructing an object, the delete command is aborted and the object remains alive. To destroy an object without regard for errors, use the "rename" command to destroy the object access command.

delete namespace name ?name...?

Deletes one or more namespaces called name. This deletes all commands and variables in the namespace, and deletes all child namespaces as well. When a namespace is deleted, it is automatically removed from the import lists of all other namespaces.

KEYWORDS

namespace, proc, variable, ensemble







Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.