alias

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alias

[′ā·lē·əs]
(computer science)
An alternative entry point in a computer subroutine at which its execution may begin, if so instructed by another routine.
An alternative name for a file or device.
(statistics)
Either of two effects in a factorial experiment which cannot be differentiated from each other on the basis of the experiment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ALIAS

(1)

alias

(operating system)
A name, usually short and easy to remember and type, that is translated into another name or string, usually long and difficult to remember or type. Most command interpreters (e.g. Unix's csh) allow the user to define aliases for commands, e.g. "alias l ls -al". These are loaded into memory when the interpreter starts and are expanded without needing to refer to any file.

alias

(networking)
One of several alternative hostnames with the same Internet address. E.g. in the Unix hosts database (/etc/hosts or NIS map) the first field on a line is the Internet address, the next is the official hostname (the "canonical name" or "CNAME"), and any others are aliases.

Hostname aliases often indicate that the host with that alias provides a particular network service such as archie, finger, FTP, or World-Wide Web. The assignment of services to computers can then be changed simply by moving an alias (e.g. www.doc.ic.ac.uk) from one Internet address to another, without the clients needing to be aware of the change.

alias

(file system)
The name used by Apple computer, Inc. for symbolic links when they added them to the System 7 operating system in 1991.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

alias

(1) An alternate name used for identification, such as for naming a field or a file. See CNAME record and email alias.

(2) In the Mac, an alias is an icon that points to a program or data file. The Mac counterpart to a Windows "shortcut," an alias can be placed on the desktop or stored in other folders, and clicking the alias is the same as clicking the original file's icon. However, deleting an alias does not remove the original file. See shortcut.

(3) In Unix/Linux, an alias is a command that points to another command. It is typically used to abbreviate complex commands that are used repeatedly. Unless saved, aliases last only for the current session.

(4) A phony signal created under certain conditions when digitizing voice.
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References in periodicals archive ?
Alias relations that result from structural aliases are used to initialize Entry as described in Section 3.
For a set of aliases, S, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] (S) is described by considering an alias relation AR [element of] S.
In computing [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], aliases that contain nonlocal named objects that are not reachable in the called procedure p are not explicitly removed because such aliases may become reachable aliases of a procedure (transitively) called by p [Burke and Cytron 1986].
Such a statement only adds new aliases; it does not kill any aliases reaching the statement.
Nonescaping locals of a recursive procedure are handled more precisely as follows: (1) an assignment to a nonescaping local is regarded as a strong update;(14) and (2) the transfer function of a procedure call is the identity function with respect to the nonescaping locals of the calling procedure: the callee cannot affect aliases of the nonescaping locals of the caller.
[1998], provides a precision metric based on the use of alias information, and therefore can be more meaningful than recording the number of aliases at all program points.
One of these functions, addlist, is called 404 times, passing the address of 100 different actuals for the list header, resulting in 100 aliases for the formal parameter.
This is because a significant number of aliases involve a formal parameter whose scope is one function (addlist), and thus these aliases are propagated only within this function.
Since this also corresponds to the number of nodes in the alias graph, it is an upper bound on the number of aliases for any access path.
--[A.sub.ap] [is less than or equal to] V: the maximum number of aliases for any access path explicitly referenced;
--[A.sub.var] [is less than or equal to] V: the maximum number of aliases for any named object due to a single level of dereference;
--[A.sub.max] [is less than or equal to] V * [A.sub.var]: the maximum number of aliases holding in any alias set;