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Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards
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Ch 22 Overview Will learn to read a syntax diagram and explain the function of each part of the diagram.
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Ch 23 Overview Will learn some basic commands, their syntax, and how to make commands more specific.
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Ch 24 Overview Will be able to define prompts and explain how they are used.
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Ch 25 Overview The purpose and function of defaults will be explained.
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Ch 26 Overview Will learn how to change the default drive and directory.
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Ch 27 Overview Will learn how to use subdirectories and wildcards with the DIR command.
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Ch 28 Overview The purpose and function of redirection will be explained and then will learn how to redirect the output of the DIR command to a file or a printer.
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Ch 29 Overview Will learn to use the Online Help feature.
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Ch 210 Command Syntax All languages have rules or conventions for speaking and writing.
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Ch 211 Command Syntax To communicate with computer at command line prompt: è Learn its language ( commands ) è Follow its syntax ( word order ) è Use correct punctuation
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Ch 212 Command Syntax The graphical user interface in Windows operating system uses syntax and rules.
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Ch 213 What Are Parameters? Parameter: è Information to modify or qualify a command
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Ch 214 What Are Parameters? Parameters can be: è Variable è Fixed
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Ch 215 What Are Parameters? Variable parameter: è x + y = z
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Ch 216 What Are Parameters? Fixed parameter: è x + 5 = z
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Ch 217 Reading a Syntax Diagram Command line interface language has: è Vocabulary ( commands ) è Grammar ( punctuation ) è Syntax ( order )
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Ch 218 Reading a Syntax Diagram DIR command syntax used earlier: DIR [drive:] [path] [filename] [/A [[:] attributes]] [/B] [/C] [/D] [/L] [/N] [/O[[:] sortorder]] [/P] [/Q] [/S] [/T[[:] timefield]] [/W] [/X] [4]
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Ch 219 Using Fixed Parameters with the DIR Command Fixed parameter: è Referred to as a switch. è Begins with / ( the slash ).
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Ch 220 Using Fixed Parameters with the DIR Command è Slash = forward slash (/). è \ = Backslash.
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Ch 221 Using Fixed Parameters with the DIR Command DIR command with /P parameter displays one screen of information at a time.
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Ch 222 Using Fixed Parameters with the DIR Command Notes for lab activities: è Check notes at beginning of each activity è At end of work session return to Windows desktop and follow shut-down procedure è Know your laboratory procedures è If system varies from text refer to the Configuration Table in Chapter 1.6
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Ch 223 Activity—Using Fixed Parameters with DIR Command KEY CONCEPTS: è Clear Screen è Display directory using: /P parameter /W parameter /P /W parameters è Delimiter
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Ch 224 Using File Names as Variable Parameters File specification ( name ) consists of: è File name è File extension
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Ch 225 Using File Names as Variable Parameters Conventions for Naming Files è All files in directory (subdirectory) must have unique names. è File names - mandatory - may be less than but no longer than 256 characters è File extensions - usually three characters long. è Following characters illegal - may NOT be used in file name: \ / : * ? | è All other characters, including periods and spaces, are legal in Windows file names.
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Ch 226 Using File Names as Variable Parameters è File name reflects subject of file. è File extension usually given by application creating file.
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Ch 227 Using File Names as Variable Parameters When naming files, many older 16-bit application packages adhere to older 8.3 DOS rules.
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Ch 228 Using File Names as Variable Parameters è Can locate specific file by using file name. è Give DIR command information about file you seek: DIR [drive:] [path] [filename] [/P] [/W]
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Ch 229 Using File Names as Variable Parameters è In some syntax diagrams you will see: [filename[.ext]] è If a file name has an extension, it must be included.
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Ch 230 Using File Names as Variable Parameters A dot (.), delimiter, is used between file name and file extension. Example: MYFILE.TXT
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Ch 231 Activity—Using a File Name as a Variable Parameter KEY CONCEPTS: è System messages è DIR command with long file names è File extensions - more than 3 characters è 8.3 file name è Use of quotation marks è Use of /x parameter è How 8.3 name derived from LFN è Reasons for keeping file names short/concise
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Ch 232 Command Line Editing Can reuse last command keyed in without rekeying it: è - recalls one letter at a time è - recalls entire command line
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Ch 233 Command Line Editing Table 2.1 Editing Keys Command Summary p. 53
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Ch 234 Command Line Editing Table 2.1 Editing Keys Command Summary p. 53
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Ch 235 Command Line Editing Table 2.1 Editing Keys Command Summary p. 53
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Ch 236 Activity—Using Command Editing KEY CONCEPT: è Use editing keys to recall and edit commands è Overstrike mode è Insert mode è Delete line quickly by using key è How to search for previously entered command
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Ch 237 Drives as Device Names Device is a place to read information from/to.
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Ch 238 Drives as Device Names Disk drives have assigned device names.
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Ch 239 Defaults Default: è Implied instructions è Value used unless another value is specified
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Ch 240 Defaults As an example, when A: \ > is displayed on screen it is the: è Prompt è Default drive è Designated or logged drive
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Ch 241 Activity—Working with the Default KEY CONCEPTS: è “Shelling out to DOS” è Using Default drive è Determining drive to be searched è Why DIR A: HELLO TXT is a very clear request
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Ch 242 Brief Introduction to Subdirectories—The Path Brief Introduction to Subdirectories—The Path Subdirectories: è Used primarily on hard disks
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Ch 243 Brief Introduction to Subdirectories—The Path Brief Introduction to Subdirectories—The Path Subdirectories permit the... î grouping of files by type. î disk to be divided into smaller more manageable sections.
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Ch 244 Brief Introduction to Subdirectories—The Path Brief Introduction to Subdirectories—The Path
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Ch 245 Brief Introduction to Subdirectories—The Path Root directory: è Created and named by OS when disk is formatted è Indicated by the backslash (\)
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Ch 246 Brief Introduction to Subdirectories—The Path è Other subdirectories created and named by user. è Naming rules same as rules for naming files.
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Ch 247 Brief Introduction to Subdirectories—The Path First backslash - root directory Following backslashes – delimiters.
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Ch 248 Brief Introduction to Subdirectories—The Path Path: è Route followed by OS to locate, save, and/or retrieve a file è Subdirectory name
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Ch 249 Brief Introduction to Subdirectories—The Path Fig 2.1 File Cabinets and Subdirectories p.63 Brief Introduction to Subdirectories—The Path Fig 2.1 File Cabinets and Subdirectories p.63
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Ch 250 Activity—Using Path with the DIR Command KEY CONCEPTS: è Delimiter for path names è Backslash (first and others)
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Ch 251 Changing Defaults è Default drive can be changed. è Command line is not case sensitive.
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Ch 252 Activity—Changing the Default Drive KEY CONCEPTS: è Changing default è Locating file not in default directory è C:\ - major subdirectory
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Ch 253 Changing Directories Default directory can be changed.
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Ch 254 Changing Directories Partial command syntax: è CD [/D][Drive:][path]
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Ch 255 Changing Directories è CD with no parameters - current default directory. è CD followed by path name - change default. è /D parameter - change drive and directory.
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Ch 256 Activity—Changing Directories KEY CONCEPTS: è Results of keying in CD alone - display current default directory CD followed by path - will change default directory CD \ - will always return to root directory
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Ch 257 Global File Specifications: Wildcards, the ?, and * Global file specifications ( wildcards ): è Can operate on group of files instead of just a single file
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Ch 258 Global File Specifications: Wildcards, the ?, and * è * - represents a group of characters. è ? - represents a single character.
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Ch 259 Activity—DIR and Wildcards KEY CONCEPTS: è Locating files with insufficient data è Using * and *.* è Using ? and ??? è Using *.SYS
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Ch 260 Redirection Keyboard: è Standard input device Screen: è Standard output device
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Ch 261 Redirection Redirection: è Changes output from monitor to somewhere else ( usually file or printer ) è To work with printer must be local printer è Works only with commands that write to standard output
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Ch 262 Redirection Redirection syntax command: è COMMAND > DESTINATION (Space required on both sides of >)
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Ch 263 Activity—Redirecting Output to a File KEY CONCEPTS: è Redirecting output to a file è Redirection is “instead of” procedure è Dealing with write-protected disks
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Ch 264 Redirecting Output to the Printer è Can redirect computer output to a file or to a printer. è To redirect to printer need a local printer.
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Ch 265 Redirecting Output to the Printer Printers device names: è PRN, LPT1, LPT2 and sometimes LPT3.
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Ch 266 Activity—Redirecting the Output to the Printer KEY CONCEPTS: è Redirection è Hardware solutions
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Ch 267 Activity—Redirecting the Output to the Printer Fig 2.2 Redirected Output p.79
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Ch 268 Getting Help Documentation: è Reference manual that comes with any software package
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Ch 269 Getting Help In DOS 6.0 and above, documentation provided less in written form and more online.
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Ch 270 Getting Help For help in DOS environment: è Key in command, then a space, forward slash, and question mark è Use HELP followed by command name
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Ch 271 Activity—Getting Help with a Command KEY CONCEPT: è Results of commands: ? ON O-N S BLP B/L/P E D
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