... Technology ServicesDirectory Navigation and Control Commands20–22pwd print working directorycd change working directory(“go to directory)mkdir make a directoryrmdir remove directoryUniversity ... vary from system to system — see the man pagesUniversity Technology ServicesIn the IntroductiontoUNIX document3• shell programming• Unix command summary tables• short Unix bibliography ... machine the user is logged intouname [options]has additional options to print info about systemhardware and softwareUniversity Technology ServicesHistory of Unix 7–81960s multics project...
... data that is stored in both Microsoft SQL Server databases and DB/2 databases.You need to select the best technology to connect to these databases. What technology can beused to perform the ... only when you deploy to a private assemblythat is stored together with the application. For shared assemblies that are available to all applications on the computer, you need to register the assembly ... inforcing the client to restart the connection.You write the following code segment to connect to the database to solve the problem:Public Sub DBCon(ConStr As String)' Connect to the databaseTry'...
... Introductionto Semiconductors & DiodesEE106 Analogue ElectronicsSupplementary NotesF. O’MalleyApril 2005Silicon Energy Band Diagram• When an electron jumps to the conduction ... connected to the n region, and the positive terminal is connected to the p regionn-Type Semiconductors• n-type material is formed by adding pentavalent (5valence electrons) impurity atoms– ... in Semiconductors - Doping• In an intrinsic semiconductor, there are relatively few free electrons– pure semi-conductive materials are neither good conductors nor good insulators• Intrinsic...
... bycomma (csh)˜user’s own home directory (csh)˜user home directory of specified user (csh)University Technology ServicesHistory shortcuts in csh53%history nnprints last nn commands%!!repeats ... Technology ServicesHistory52–53C Shell, Korn shell and others retain information aboutformer commands executed within the shell• Use history and savehist variables to set number ofcommands ... forms:• Anchors — tie the pattern to a location on the line• Character sets — match a single character at a singleposition• Modifiers — specify how many times to repeat theprevious expressionRegular...
... save the file to. Click on Desktop and select the folder you created on the desktop. Then click Save and the image will be saved to the directory on the desktop. To add the image to your page, ... Introduction to Netscape Composer® Updated February, 00 Welcome to the Introductionto Netscape Composer. This handout is divided into five sections: Inserting ... connection to another Web page). Creating hyperlinks in Composer is very straightforward. • Click the link icon in the button toolbar. A window will pop up asking you to enter text to display....
... second to last equation to get the second to last unknown. This isrepeated until the entire system is solved.An Introductionto Linear AlgebraBarry M. Wise and Neal B. GallagherEigenvector Research, ... way to calculate X+.xypFigure 2. The Projection of the vector y onto the vector x.We may also be interested in the projection of a point y onto a subspace. For instance, wemay want to ... is the zero matrix to within machine precision.Vector Spaces and SubspacesBefore continuing on it is useful to introduce the concept of a vector space. The mostimportant vector spaces are denoted...
... SpecificationCreationModule 12: Introduction to FunctionalSpecifications Module 12: Introductionto Functional Specifications 448 Module 12: Introductionto Functional Specifications ... to include a chart that translates mandated project variables into explicit design goals. Use prototypes in the functional specification and the review process. Prototypes are invaluable tools ... snapshot Prototyping is a technique used to validate the functional specification by allowing the team and the customer to visualize different aspects of the solution. Prototypes help clarify...
... is used to refer to the content of a variable variable1=${variable2} •The braces are essentially used to delimit the variable name.•The command to assign the value of today variable to x variable ... customize the environment. •Some of the environment variables are:•HOME: Stores the location of the HOME directory of a user•PATH: Contains a list of colon-delimited path names of directories ... palindrome"fi Linux Shells•Some of the popular shells available in Linux are:•Bash:•Is an acronym for ‘Bourne Again Shell’ and is the default shell for most Linux systems •Uses...
... nhau.Đơn giản, nhất quán, đó là tư tưởng chủ đạo của Unix. II. Unix/ Linux Chương I. Tổng quan hệ thống Unix 1. Cấu trúc hệ thốngCấu trúc của Unix Unix có thể xem như một loại kim tự tháp với các ... Used directory countThe group descriptors are placed on after another and together they make the group descriptortable. Each Blocks Group contains the entire table of group descriptors after ... be the directory entry for the '/' directory. The EXT2 Group DescriptorEach Block Group has a data structure describing it. Like the Superblock, all the groupdescriptors for all...
... An Introductionto ATM Networks Harry Perros An Introductionto ATM Networks 8 view to facilitating the international exchange of goods and services, and to developing ... by station A to indicate to station B the current status of the ARQ from B to A, and N(S) is used by station A to indicate the sequence number of the frame that it is transmitting to B. S-frames ... function is to transform the raw transmission link provided by the physical layer into a reliable communications link. This was deemed An Introductionto ATM Networks 24 This protocol is widely...
... response to ping Improper response to ARP queries Improper response to DNS queries Source routing to suspicious node Employing a honeypot Network latency monitoring Time-domain reflectometers ... Ethernet, ARP, RARP Programming Environment: Unix & C (Mostly Linux and ANSI C) CASL (Custom Audit Scripting Language) Introduction to TCP/IPR/L =Http Request and ReplyTH/F = TCP ... network protocols and services. Mechanisms to protect networks. Security tools.Overview of This Course TCP/IP Suite Vulnerabilities and solutions Security protocols built on top of TCP/IP...