在UNIX中如何实现CSHELL

在ＵＮＩＸ中如何实现ＣＳＨＥＬＬ浙江省浦江县保险公司张根正在ＵＮＩＸ系统中，Ｓｈｅｌｌ是用户与ＵＮＩＸ操作系统之间的接口，既是一种命令解释器，又是一种高级编程语言。Ｓｈｅｌｌ除了标准的Ｖｓｈｅｌｌ（ｓｈ）外，还有其他两种版本：ＣＳｈｅｌｌ（ｃｓｈ）和...     

在UNIX中如何实现C Shell

在ＵＮＩＸ中如何实现ＣＳｈｅｌｌ浦江县保险公司张根正ＵＮＩＸ系统中，Ｓｈｅｌｌ是用户与ＵＮＩＸ操作系统之间的接口，既是一种命令解释器，又是一种高级编程语言。Ｓｈｅｌｌ除了标准的Ｖｓｈｅｌｌ（ｓｈ）外，还有其他两种版本：ＣＳｈｅｌｌ（ｃｓｈ）和Ｋｏｒｎ...     

UNIX／XENIX系统中DOSCP命令的改进

ＵＮＩＸ／ＸＥＮＩＸ系统中ＤＯＳＣＰ命令的改进慈溪市邮电局网管中心陈翔众所周知，ＵＮＩＸ／ＸＥＮＩＸ操作系统给你提供了一个丰富的工作环境，其众多强大的实用程序．是Ｗ）Ｓ操作系统所望尘莫及的。在此基础上，如果你能熟练地掌握并运用ＳＨＥＩ－１一语言。就能...     

灵活实现DOS文件传送到UNIX／XENIX

本人给出了将ＤＯＳ文件传送到ＵＮＩＸ／ＸＥＮＩＸ下时可匹配通配符＊的方法，改进了ｄｏｓｃｐ命令的不足。     

灵活实现DOS文件传递到UNIX／XENIX

本人给出了将ＤＯＳ文件传送到ＵＮＩＸ／ＸＥＮＩＸ下时可匹配通配符＊的方法，改进了ｄｏｓｃｐ命令的不足。     

对AST PP3／33微机实时加锁

对ＡＳＴＰＰ３／３３微机实时加锁江苏省射阳县农行蔡廷武使用过多用户ＵＮＩＸ／ＸＥＮＩＸ的用户都知道，操作系统中有个Ｌｏｃｋ命令，该命令可以锁住用户的终端。它要求用户输入一个ｐａｓｓｗｏｒｄ（口令），再请求输入口令，以便验证，然后锁住终端，冻结键盘，以...     

控制DOS命令的使用权限

ＤＯＳ系统由于其自身简洁朴实的特性，不具备如ＵＩＮＸ／ＸＥＮＩＸ系统对用户使用某些命令的权限的控制功能，使一些危险命令容易被操作引起灾难。本文通过刨析ＤＯＳ命令的执行过程，提出了实现控制命令执行过程的多种方法，从而达到不同操作人员的使用权力有区别，维护了数据安全的目的。     

在LINUX下测试图形的产生

文章阐述测试图形生成器及其在ＬＩＮＵＸ下的运行，ＴＰＬＰｒｏｇ是电子部支持的八五攻关课题，集成电路ＣＡＤ／ＣＡＴ工程之一的子项目，它运行于ＳＵＮＳｐａｒｃ２的ＵＮＩＸ下，是为用户开发测试图形服务的一个集成开放式环境，ＬＩＮＵＸ是国际互联网上ＵＮＩＸ的仿制品，文章详述了ＴＰＬＰｒｏｇ移植到ＬＩＮＵＸ的技术实现，从而论证建立“测试中转工作站”实现中小ＩＣ用户共享中高级测试设备的可能性。     

UNIX平台E—mail服务器var／mail区空间紧张问题缓解与实现

在ＩＮＴＥＲＮＥＴ 上大部份服务器都是使用ＵＮＩＸ平台,／ｖａｒ／ｍａｉｌ区是Ｕｎｉｘ平台Ｅ－ｍａｉｌ服务器上所有用户来信的存放目录。 在工作中,我发现ＵＮＩＸ系统自带的ｑｕｏｔａ命令对用户的ｈｏｍｅ区可以起到限额的作用,但是对于／ｖａｒ／ｍａｉｌ区就只有警告而不限制,用命令ｒｅｐｑｕｏｔａ可以看到某某用户例如：“ｙｈｌｉａｏ＋－ １５６６４ ４０００ ５０００ ＮＯＴ ＳＴＡＲＴＥＤ”,已经ＮＯＴＳＴＡＲＴＥＤ了,但是他的信还是可以寄进来,导致／ｖａｒ／ｍａｉｌ区的信件不断增加,／ｖａｒ／ｍａｉｌ区…     

UNIX工作站上的终端打印机的共享

ＵＮＩＸ工作站上的终端打印机的共享周文宏西安电子科技大学计算中心（７１００７１）在ＵＮＩＸ工作站中，有一Ｓｐｏｏｌｉｎｇ系统，能够处理多个打印机和配置．通过编辑打印机数据库文件／ｅｔｃ／ｐｒｉｎｔｃａｐ及使用１ｐｒ命令就可以很方便地进行脱机打印。但在...     

Command‐line interfaces can be efficiently brought to graphics: COLIMATE (the COmmand LIne MATE)

Scientific computing has traditionally been done on workstations, most of the time running on UNIX‐like operating systems. These systems are often very robust, powerful and especially suited to heavy computation tasks; however, the usual user interface is based on a command line with all the information needed for the appropriate functioning of the algorithm. These command lines are seldom user‐friendly but, on the other hand, they allow batch processes to be built. In this work, a model for command‐line‐driven packages is given, and at the same time the model includes objects that can be directly translated into a graphical user interface. A language (Colimate) implementing this model is shown to serve as a bridge between command‐line‐driven programs and more friendly user interfaces. Exploiting the specificness of the user interfaces addressed, powerful graphical interfaces can be built with a very simple syntax and small programming effort. Furthermore, the command‐line program needs not to be modified, so in this way the possibility of making batches is not lost. Copyright © 2002 John Wiley & Sons, Ltd.     

Wsh—a new command interpreter for unix

WSH is a window managing command language interpreter (shell) for the UNIX operating system. This interface increases a user's power to communicate with UNIX by providing a process management environment based on an integrated virtual terminal-shell design. Unlike conventional shells, WSH affords its user the ability to monitor and communicate with multiple processes within a single display context. Windows represent virtual terminals in the WSH design, and as such are device-independent abstractions of real terminals. Since the design of the virtual terminal environment is based on UNIX's TERMCAP terminal database facility, WSH is portable across all versions of UNM supporting this feature. WSH requires neither alteration of existing UNIX facilities nor special display devices. The current implementation runs on a Digital VAX 11/780 under Berkeley UNIX 4.1 environment.     

A toolkit for constructing command driven graphics programs

This paper describes a toolkit designed to construct graphics applications on top of it that are command driven. The aim in its design is to achieve a uniform look-and-feel for the applications developed in the department, and to make it possible to construct demonstration programs or test programs of ongoing research that required a sophisticated user interface with minimal fuss. The present implementation runs under UNIX, but the same philosophy could be used in other environments.     

Plan Realization for Complex Command Interaction in the UNIX Help Domain

Yucca-* is a consultation system which is designed to provide the UNIX user, through a friendly interface, with detailed expert advice on the use of the UNIX command language. One of the principal design goals of this system is the ability to provide correct responses to technically complex queries whose solution may involve the interconnection of several commands, each with multiple options. The realization of such a goal requires two things. First, representation of dynamic knowledge about command behavior at a sufficient level of detail to support solution of the query is needed. Second, a planning mechanism capable of interconnecting such knowledge into a cohesive solution must be provided. This paper first develops the command dynamics representation techniques employed in Yucca-*. It then examines in detail the plan generation mechanism which is used to solve complex dynamic queries. Particular emphasis is placed upon those aspects of the problem which are unique to this particular domain. This revised version was published online in August 2006 with corrections to the Cover Date.     

Support for graphs of processes in a command interpreter

Since the inception of pipes in the UNIX operating system, the standard UNIX command interpreters, or shells, have supported processes connected only in linear arrangements. This paper explains why linear pipe structures are too restrictive and how the standard UNIX shells have dictated the interface strategy of new commands. A new command interpreter is presented that supports general directed process graphs. Processes and files are considered simply as nodes and pipes as arcs in a process graph.     

一种改进的IDS异常检测模型

基于机器学习的异常检测是目前IDS研究的一个重要方向．该文对一种基于机器学习的用户行为异常检测模型进行了描述，在此基础上提出一种改进的检测模型．该模型利用多种长度不同的shell命令序列表示用户行为模式，建立多个样本序列库来描述合法用户的行为轮廓，并在检测中采用了以shell命令为单位进行相似度赋值的方法．文中对两种模型的特点和性能做了对比分析，并介绍了利用UNIX用户shell命令数据进行的实验．实验结果表明，在虚警概率相同的情况下改进的模型具有更高的检测概率．     

An object oriented user interface for analysis of biological data

In a previous paper we described a self-documented file and a collection of general purpose programs or tools that facilitates the management and analysis of biological data. The tools can be specified in a pipeline to accomplish a specific analysis task. However, we found that it was difficult for investigators to learn the UNIX command language for specifying pipelines, specify selection tasks through a command language, and visualize the data as they were transformed and rearranged. To alleviate these problems we developed an object-oriented user interface for the pipeline programs. The system consists of four major programs for visualization: Vedit, Vgraf, Vscan, and V spread. Vedit is a simple text editor, Vgraf is a flexible graphics program, Vscan facilitates scanning graphically through large files, and Vspread provides spreadsheet-like capabilities. To demonstrate how the visualization programs are used together to accomplish the needed analysis we describe two case studies and then discuss how well the system accomplished the goals of visualization, short learning curve, and user adaptability.     

基于Mach3．0微核心的UNIX操作系统

本文介绍了在Ｍａｃｈ３．０微核心上通过多个服务器模拟ＵＮＩＸ操作系统的原理和总体结构。阐述了Ｍａｃｈ３．０微核心界面、系统服务器、透明模拟库、ＵＮＩＸ服务器以及给用户提供的界面。     

基于X—WINDOW的用户接口生成和管理系统X—UIGMS

本文介绍了一种建立在UNIX系统X—WINDOW环境上的通用图形式用户接口生成和管理系统X—UIGMS,描述了它的原理,实现方法,功能和特点。该系统可用于各种复杂的应用系统,可以让用户选择理想的用户接口和交互方式,所设计的用户接口可以具有丰富的多层次的提示和出错检测恢复功能,可以满足各种类型的用户需要。