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Topic: Shell (computing)


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In the News (Tue 8 Dec 09)

  
  SHELL EXTENSION CITY, millions of free Windows power tools, explorer enhancements, windows add-ons, tweaks, system ...
Imagine that you can talk to your computer.
You would never have to use your keyboard or mouse ever again.
All bookmarks are global and are preserved when you turn your computer off.
shellcity.net   (919 words)

  
  Working in the Shell Environment - computing.vt.edu
Unfortunately the script language of the C Shell is not compatible with Bourne and Korn Shells.
Since the Korn Shell provides both compatibility with the Bourne shell and interactive capabilities analogous to those of the C shell, it is commonly the shell of choice on the systems where it is available.
The command "set" is used to assign a value to a C Shell variable in the local environment; "setenv" is used to assign a value to a C Shell variable in the global environment, i.e., the current environment and all future processes generated from this shell.
computing.vt.edu /infrastructure_services/vtaix/shell.html   (4090 words)

  
  * Shell - (Computing): Definition   (Site not responding. Last check: )
Shell sort (or Shellsort) is one of the oldest sorting algorithms.
Shell Account or Shell Access An account that allows access to a UNIX based host server, with telnet or SSH being the most popular means of connect when accessing a hosting server...
The shell is the part of the OS that interacts with the user and accepts typed commands...
www.mimihu.com /computing/shell.html   (981 words)

  
 Shells and Shell Scripts
A Unix shell is a command language interpreter, the primary purpose of which is to translate command lines typed at a terminal into system actions.
Although there are several different Unix shells, among them the C shell (csh), the Bourne shell and the Korn shell, the one most frequently used on Blake within Berkeley UNIX is the C shell.
The shell has some built-in functions, which it performs directly, but most commands that you enter cause the shell to execute programs that are external to the shell.
www.washington.edu /computing/unix/shell.html   (1492 words)

  
 MEMPHYS - Facilities - Computing - tcsh
The correct shell variable can be set to `cmd' to correct the command name or `all' to correct the entire line each time return is typed, and autocorrect can be set to correct the word to be completed before each completion attempt.
A command receives the environment in which the shell was invoked as modified by the input-output parameters and the presence of the command in a pipeline.
If the shell is compiled with POSIX defined (see the ver--- sion shell variable), the result of a file inquiry is based on the permission bits of the file and not on the result of the access(2) system call.
www.memphys.sdu.dk /facilities/computing/man.php?manpage=tcsh   (16545 words)

  
 Shell (computing) - Wikipedia, the free encyclopedia
In computing, a shell is computer software that essentially provides a kind of user interface.
Typically, the term refers only to an operating system shell that provides access to the services of a kernel.
However, the term is also applied very loosely to applications and may include any software that is "built around" a particular component, such as web browsers and email clients that are "shells" for HTML rendering engines.
en.wikipedia.org /wiki/Shell_(computing)   (216 words)

  
 Operating system shell - Wikipedia, the free encyclopedia
An operating system shell is a shell for an operating system; it is a program that presents an interface to various operating system functions and services.
The shell is so called because it is an outer layer of interface between the user and the innards of the operating system (the kernel).
The relative merits of CLI- and GUI-based shells are often debated.
en.wikipedia.org /wiki/Operating_system_shell   (278 words)

  
 FSU's Academic Computing and Network Services
A Unix shell is a program that interprets user-issued commands and passes them to the operating system kernel for execution.
Shell commands and capabilities differ, but each type of shell provides features such as parameter processing, variable definition, and loop structures.
The C shell prompt is normally shown in examples, unless the topic is specific to another shell.
www.acns.fsu.edu /docs/unix_shells.html   (998 words)

  
 Introduction & Overview - computing.vt.edu
The Bourne (sh) and C (csh) shells are also available and may be used in place of the Korn shell.
Where there are known differences between the Korn shell and the other two shells, alternative examples or notes will be included to explain how the examples should be modified to enable the function for the Bourne or C shell.
Since some shell features, such as alias and history, are not available in the Bourne shell, it is recommended that you use the Korn or C shell as the default login shell for interactive applications.
www.computing.vt.edu /infrastructure_services/vtaix/introduction.html   (2164 words)

  
 Computing Forums :: View topic - Shell access
Shell access is a way of loging directly into the server via command line.
Even with jailed shell (which is suppose to lock the user to their home directory) a "hacker" aka user with extensive knowledge of linux can still cause harm to the server and/or other shared accounts on the server.
Well, yes you could lock down your server tight enough and disable many shell commands which will prevent many and most breaches, but there will allways be someone out their more knowledgeable then your server admin....
www.computing-forums.com /624.html   (712 words)

  
 Chapter 5: Shells
There are two families of shells: one based on the Bourne shell (this family also includes the Korn (ksh) and Bourne-again (bash) shells), and the other based on the Berkeley/C shell.
Of the six major shells, four are in the Bourne family: sh, ksh, bash, and zsh; and two are in the Berkeley/C family: csh, tsch.
It is important to remember that, like all UNIX commands that are not part of the shell (see section 6.1.1 Programs, Commands and Processes for an explanation of shell commands), the script file executes in a subshell forked5 by the parent shell.
computing.fnal.gov /cd/unixlinux/unixatfermilab/html/shells.html   (1812 words)

  
 What is shell? - A Word Definition From the Webopedia Computer Dictionary   (Site not responding. Last check: )
For example, if the application is usually command driven, the shell might be a menu-driven system that translates the user's selections into the appropriate commands.
The shell, therefore, is the part of the command processor that accepts commands.
After verifying that the commands are valid, the shell sends them to another part of the command processor to be executed.
www.webopedia.com /TERM/s/shell.html   (353 words)

  
 Computing Service Courses - Unix 3: Shell programming
It introduces the concepts and practices required for writing shell scripts and shell functions in the Bourne Shell, and hence its derivatives: the Korn Shell (ksh) and the Free Software Foundation’s Bourne Again Shell (bash).
Shell programming allows you to automate sequences of commands and to enhance user interaction.
Familiarity with basic shell features (for example piping, redirection), an editor and simple Unix commands (such as chmod, cp, grep) is assumed.
www.ucs.ed.ac.uk /usd/iss/courses/coursedesc.shtml?1160   (191 words)

  
 PC Pro: Analysis: Real World Computing: Easy shell extensions
Shell+ will let you create a wide variety of these shell extension types, and the author Alexey Dynnikov is adding more all the time.
Whenever the shell detects that a file of this type has been right-clicked, it consults the Windows Registry to see if there are any context-menu handlers for this file extension.
Bear in mind that a shell extension isn't a form-based project, and for this reason the designer of Shell+ uses the TSxModule class (derived from the more familiar TDataModule class) as a convenient container for any non-visual components that need to be included in the project.
www.pcproawards.com /realworld/32323/easy-shell-extensions/page2.html   (757 words)

  
 * C shell - (Computing): Definition   (Site not responding. Last check: )
Along with the Korn shell and the C shell, the Bourne shell remains among the three most widely used and is included with all UNIX systems.
The Bourne shell is often considered the best shell for developing scripts...
A type of in which the are covered by a transparent, plastic shell.
www.mimihu.com /computing/c_shell.html   (160 words)

  
 Parallel Computing in Shell Oil Company   (Site not responding. Last check: )
The Shell Oil Company, the U.S. subsidiary of the Royal Dutch/Shell Group, first made a study of parallel computers and their possible application to geophysical computing in 1969.
When it became apparent that single-chip microprocessors would make it economically feasible to build, maintain and deploy a reliable parallel computer, a research group was formed in 1981 to survey the technology and initiate or obtain a suitable computer system.
Parallel computers can be made to work in practice, but one must be careful about the job mix, expectations, and competition from simpler systems.
www.scl.ameslab.gov /Personnel/don/abstract.psc.html   (238 words)

  
 Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations   (Site not responding. Last check: )
A skin depth-independent shell element to model thin conducting sheets is described in a finite element context.
The finite element formulation is first described, then boundary conditions at the edge of conducting shells and the possibility of describing non conducting line gaps and holes are discussed.
Finally, a computation of an earthing transformer model with an aluminium shield modelled with shell elements is presented.
www.osti.gov /energycitations/product.biblio.jsp?osti_id=63101   (243 words)

  
 CNS Computing -- Secure Remote Shell
At this point, you should have a shell prompt that works exactly as if you were using telnet.
Once you enter your password, you should have a shell prompt that works exactly as if you were using telnet.
Now you should have a shell prompt that works exactly as if you were using telnet.
www.cns.uni.edu /cns-computing/help/secure-ssh.html   (922 words)

  
 Business - Top accountant quits Shell - Accountancy Age   (Site not responding. Last check: )
The decision was a further blow to the oil giant after last Friday's revelation of redundancies among the 2,000 workforce at the Shell-Mex building in London.
A Shell spokeswoman said only 200 staff would lose their jobs, but added financial staff would be hit, with some being relocated.
Shell is a good employer and makes decent arrangements for those people whose jobs are brought to an end.' He refused to comment on Turberville's departure.
www.computing.co.uk /news/bf/64092   (465 words)

  
 SSH Secure Shell - Kellogg Research Computing
MS Windows: SSH Secure Shell is installed in all Kellogg public workstations, and it is also installed in student laptops, as part of the standard image.
The SSH Secure Shell application can be obtained through Northwestern's site license [Northwestern University distribution site].
SSH Secure Shell is a protocol and software that allows encrypted terminal connections between computers, such as a connection between a Microsoft Windows workstation and a UNIX host.
www.kellogg.northwestern.edu /researchcomputing/ssh.htm   (861 words)

  
 Galileo Computing - Bücher und Video-Trainings zur Programmierung, Administration und Anwendung
Galileo Computing - Bücher und Video-Trainings zur Programmierung, Administration und Anwendung
Von der Administration des Systems, über die Shell, bis hin zur Netzwerkkonfiguration und Sicherheitsthemen und einem...
Kompetentes Nachschlagewerk zum Lernen für Auszubildende und Dozenten der Fachinformatik in den Bereichen Anwendungsentwicklung und Systemintegration.
www.galileocomputing.de   (391 words)

  
 Curtains up: introducing the Z shell
This is typically in the form of the Bash shell, or sometimes the C shell, or Tcsh, or the Korn shell(the default on IBM's AIX operating system).
And for those who are reluctant at the prospect of having to learn "a whole new shell", it's worth noting that Zsh is about as close as possible to a superset of all those other shells, so you can get started straightaway.
The shell knows that the first part of input is going to be a command, not a filename, so it completes against commands, both built in commands and external commands (located using the PATH variable), and also shell functions and aliases.
www-106.ibm.com /developerworks/linux/library/l-z.html?open&l=335,t=gr,p=Z-Shell   (2585 words)

  
 Citrix Systems » Shell Canada Citrix Case Study   (Site not responding. Last check: )
Being a current WinFrame user, Shell Canada is eager to continue using Server-based Computing software to leverage its heterogeneous population of end-user computers.
Shell Canada relies heavily on a variety of desktop environments, and standardizing completely on 32-bit Windows at the desktop is an unlikely scenario.
Shell Canada is migrating its applications on to the Windows NT 4.0 multi-user operating system, Windows Terminal Server.
www.citrix.com /English/aboutCitrix/caseStudies/caseStudy_print_p.asp?storyID=3245   (1269 words)

  
 PC Pro: Analysis: Real World Computing: Easy shell extensions
Shell extensions are one of the more esoteric aspects of Windows programming.
This is the sort of situation where shell extensions really come into their own.
By creating a specific type of shell extension called an icon handler, you get complete control over the icon that's used to display each of your documents, and this control is applied on a per-file basis.
www.pcpro.co.uk /realworld/32323/easy-shell-extensions.html   (740 words)

  
 Shell spins off data warehouse - Computing   (Site not responding. Last check: )
Shell's internal IT services group, Shell Services International (SSI), spent $20m developing its own product, named Kalido, after it was unable to find any packaged software that would meet the complex needs of its global organisation.
SSI developed Kalido to deal with Shell's diverse global operations, which mirror those of Unilever.
Shell Oil uses Kalido for all of its data warehousing needs, and the product manages 40 per cent of all Shell's data worldwide.
www.computing.co.uk /computing/news/2068347/shell-spins-warehouse   (577 words)

  
 Richlab Fast Computing Resources Tutorial   (Site not responding. Last check: )
Most people are not, at least initially, familiar with the powerful and secure UNIX computing resources used in academic research laboratories such as this one.
The modular architecture of UNIX provided many opportunities for programmers to write improvements and replacements to the original shell, with the result that today there are numerous shell variants, including C Shell csh, Korn Shell ksh, ash, tcsh, and others...
SSH, or Secure Shell, is a modern replacement for telnet which encrypts all communications between a client and server.
eyegene.ophthy.med.umich.edu /lab_tutorial   (4039 words)

  
 Statistical Computing System Architecture   (Site not responding. Last check: )
In deciding where to store or write your files, you need to consider a number of factors: the size of the files, the frequency with which they will be accessed or modified, whether the files need to be shared with other users, and whether the files need to be backed up.
But you do not have to have an AFS client on your computer to connect to Statapps -- all you have to do is use ssh on your computer to connect and login.
Environment variables are variables defined in the Unix shell which are available to programs you invoke from that shell.
www.unc.edu /atn/statistical/statapps.html   (6432 words)

  
 ATN Research Computing - Secure Shell Clients   (Site not responding. Last check: )
There are two components to secure shell: the client (ssh) and the server (sshd).
All of ATN's publicly accessible servers run the secure shell server, and secure shell is the prefered way to connect to them.
ATN supports version 2 of the secure shell protocol (ssh2), so you should use a version 2 client to connect.
www.unc.edu /atn/asg/applications/ssh   (539 words)

  
 IASB turns to oil after Shell - Accountancy Age   (Site not responding. Last check: )
A project that could help stop fiascos like oil group Shell's recent reserves overstatement is currently underway at the International Accounting Standards Board, writes Paul Grant.
Shell appointed an internal audit committee to review its reserve bookings and will report at the end of April.
The IASB currently has an exposure draft out for consultation on the exploration and evaluation of mineral resources, but this is unlikely to help the position at Shell.
www.computing.co.uk /news/bf/1136630   (489 words)

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