ch 21 command syntax using the dir command with parameters and wildcards
TRANSCRIPT
![Page 1: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/1.jpg)
Ch 2 1
Command SyntaxUsing the DIR Command with
Parameters and Wildcards
![Page 2: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/2.jpg)
Ch 2 2
OverviewOverview
Will learn to read a syntax diagram and explain the function of each
part of the diagram.
![Page 3: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/3.jpg)
Ch 2 3
OverviewOverview
Will learn some basic commands, their syntax, and
how to make commands more specific.
![Page 4: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/4.jpg)
Ch 2 4
OverviewOverview
Will be able to define prompts and explain how they are
used.
![Page 5: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/5.jpg)
Ch 2 5
OverviewOverview
The purpose and function of defaults will be explained.
![Page 6: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/6.jpg)
Ch 2 6
OverviewOverview
Will learn how to change the default drive and directory.
![Page 7: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/7.jpg)
Ch 2 7
OverviewOverview
Will learn how to use subdirectories and wildcards
with the DIR command.
![Page 8: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/8.jpg)
Ch 2 8
OverviewOverview
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.
![Page 9: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/9.jpg)
Ch 2 9
OverviewOverview
Will learn to use the Online Help feature.
![Page 10: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/10.jpg)
Ch 2 10
Command SyntaxCommand Syntax
All languages have rules or conventions for speaking
and writing.
![Page 11: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/11.jpg)
Ch 2 11
Command SyntaxCommand Syntax
To communicate with computer at command line prompt:
Learn its language (commands) Follow its syntax (word order) Use correct punctuation
![Page 12: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/12.jpg)
Ch 2 12
Command SyntaxCommand Syntax
The graphical user interface in Windows operating system
uses syntax and rules.
![Page 13: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/13.jpg)
Ch 2 13
What Are Parameters?What Are Parameters?
Parameter: Information to modify or
qualify a command
![Page 14: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/14.jpg)
Ch 2 14
What Are Parameters?What Are Parameters?
Parameters can be: Variable Fixed
![Page 15: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/15.jpg)
Ch 2 15
What Are Parameters?What Are Parameters?
Variable parameter: x + y = z
![Page 16: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/16.jpg)
Ch 2 16
What Are Parameters?What Are Parameters?
Fixed parameter: x + 5 = z
![Page 17: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/17.jpg)
Ch 2 17
Reading a Reading a Syntax DiagramSyntax Diagram
Command line interface language has: Vocabulary (commands) Grammar (punctuation) Syntax (order)
![Page 18: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/18.jpg)
Ch 2 18
Reading a Reading a Syntax DiagramSyntax 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]
![Page 19: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/19.jpg)
Ch 2 19
Using Fixed Parameters Using Fixed Parameters with the DIR Commandwith the DIR Command
Fixed parameter: Referred to as a switch. Begins with / (the slash).
![Page 20: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/20.jpg)
Ch 2 20
Using Fixed Parameters Using Fixed Parameters with the DIR Commandwith the DIR Command
Slash = forward slash (/).
\ = Backslash.
![Page 21: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/21.jpg)
Ch 2 21
Using Fixed Parameters Using Fixed Parameters with the DIR Commandwith the DIR Command
DIR command with /P parameter displays one screen
of information at a time.
![Page 22: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/22.jpg)
Ch 2 22
Using Fixed Parameters Using Fixed Parameters with the DIR Commandwith the DIR Command
Notes for lab activities: Check notes at beginning of each activity At end of work session return to Windows
desktop and follow shut-down procedure Know your laboratory procedures If system varies from text refer to the
Configuration Table in Chapter 1.6
![Page 23: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/23.jpg)
Ch 2 23
Activity—Using Fixed Activity—Using Fixed Parameters with DIR CommandParameters with DIR Command
KEY CONCEPTS: Clear Screen Display directory using:
/P parameter /W parameter /P /W parameters
Delimiter
![Page 24: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/24.jpg)
Ch 2 24
Using File Names as Using File Names as Variable ParametersVariable Parameters
File specification (name) consists of: File name File extension
![Page 25: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/25.jpg)
Ch 2 25
Using File Names as Using File Names as Variable ParametersVariable ParametersConventions for Naming Files
All files in directory (subdirectory) must have unique names.
File names - mandatory - may be less than but no longer than 256 characters
File extensions - usually three characters long. Following characters illegal - may NOT be used in
file name: \ / : * ? < > | All other characters, including periods and spaces, are
legal in Windows file names.
![Page 26: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/26.jpg)
Ch 2 26
Using File Names as Using File Names as Variable ParametersVariable Parameters
File name reflects subject of file.
File extension usually given by application creating file.
![Page 27: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/27.jpg)
Ch 2 27
Using File Names as Using File Names as Variable ParametersVariable Parameters
When naming files, many older 16-bit application packages
adhere to older 8.3 DOS rules.
![Page 28: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/28.jpg)
Ch 2 28
Using File Names as Using File Names as Variable ParametersVariable Parameters
Can locate specific file by using file name.
Give DIR command information about file you seek:
DIR [drive:] [path] [filename] [/P] [/W]
![Page 29: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/29.jpg)
Ch 2 29
Using File Names as Using File Names as Variable ParametersVariable Parameters
In some syntax diagrams you will see:
[filename[.ext]]
If a file name has an extension, it must be included.
![Page 30: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/30.jpg)
Ch 2 30
Using File Names as Using File Names as Variable ParametersVariable Parameters
A dot (.), delimiter, is used between file name and file extension.
Example: MYFILE.TXT
![Page 31: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/31.jpg)
Ch 2 31
Activity—Using a File Name Activity—Using a File Name as a Variable Parameteras a Variable Parameter
KEY CONCEPTS: System messages DIR command with long file names File extensions - more than 3 characters 8.3 file name Use of quotation marks Use of /x parameter How 8.3 name derived from LFN Reasons for keeping file names short/concise
![Page 32: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/32.jpg)
Ch 2 32
Command Line EditingCommand Line Editing
Can reuse last command keyed in without rekeying it: <F1> - recalls one letter at a time <F3> - recalls entire command line
![Page 33: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/33.jpg)
Ch 2 33
Command Line EditingCommand Line EditingTable 2.1 Editing Keys Command Summary p. 53Table 2.1 Editing Keys Command Summary p. 53
![Page 34: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/34.jpg)
Ch 2 34
Command Line EditingCommand Line EditingTable 2.1 Editing Keys Command Summary p. 53Table 2.1 Editing Keys Command Summary p. 53
![Page 35: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/35.jpg)
Ch 2 35
Command Line EditingCommand Line EditingTable 2.1 Editing Keys Command Summary p. 53Table 2.1 Editing Keys Command Summary p. 53
![Page 36: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/36.jpg)
Ch 2 36
Activity—Using Activity—Using Command EditingCommand Editing
KEY CONCEPT: Use editing keys to recall and edit commands Overstrike mode Insert mode Delete line quickly by using <Esc> key How to search for previously entered command
![Page 37: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/37.jpg)
Ch 2 37
Drives as Device NamesDrives as Device Names
Device is a place to read information from/to.
![Page 38: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/38.jpg)
Ch 2 38
Drives as Device NamesDrives as Device Names
Disk drives have assigned device names.
![Page 39: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/39.jpg)
Ch 2 39
DefaultsDefaults
Default: Implied instructions Value used unless another value
is specified
![Page 40: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/40.jpg)
Ch 2 40
DefaultsDefaults
As an example, when A: \ > is displayed on screen it is the:
Prompt Default drive Designated or logged drive
![Page 41: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/41.jpg)
Ch 2 41
Activity—Working Activity—Working with the Defaultwith the Default
KEY CONCEPTS: “Shelling out to DOS” Using Default drive Determining drive to be searchedWhy DIR A: HELLO TXT is a very
clear request
![Page 42: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/42.jpg)
Ch 2 42
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
Subdirectories: Used primarily on hard disks
![Page 43: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/43.jpg)
Ch 2 43
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
Subdirectories permit the . . . grouping of files by type. disk to be divided into smaller
more manageable sections.
![Page 44: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/44.jpg)
Ch 2 44
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
![Page 45: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/45.jpg)
Ch 2 45
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
Root directory: Created and named by OS when
disk is formatted Indicated by the backslash (\)
![Page 46: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/46.jpg)
Ch 2 46
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
Other subdirectories created and named by user.
Naming rules same as rules for naming files.
![Page 47: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/47.jpg)
Ch 2 47
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
First backslash - root directory
Following backslashes – delimiters.
![Page 48: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/48.jpg)
Ch 2 48
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
Path: Route followed by OS to locate,
save, and/or retrieve a file Subdirectory name
![Page 49: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/49.jpg)
Ch 2 49
Brief Introduction to Brief Introduction to Subdirectories—The PathSubdirectories—The Path
Fig 2.1 File Cabinets and Subdirectories p.63Fig 2.1 File Cabinets and Subdirectories p.63
![Page 50: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/50.jpg)
Ch 2 50
Activity—Using Path with Activity—Using Path with the DIR Commandthe DIR Command
KEY CONCEPTS: Delimiter for path names Backslash (first and others)
![Page 51: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/51.jpg)
Ch 2 51
Changing DefaultsChanging DefaultsDefault drive can be changed.
Command line is not case sensitive.
![Page 52: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/52.jpg)
Ch 2 52
Activity—Changing Activity—Changing the Default Drivethe Default Drive
KEY CONCEPTS: Changing default Locating file not in default directory C:\ - major subdirectory
![Page 53: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/53.jpg)
Ch 2 53
Changing DirectoriesChanging Directories
Default directory can be changed.
![Page 54: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/54.jpg)
Ch 2 54
Changing DirectoriesChanging Directories
Partial command syntax: CD [/D][Drive:][path]
![Page 55: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/55.jpg)
Ch 2 55
Changing DirectoriesChanging Directories
CD with no parameters - current default directory.
CD followed by path name - change default.
/D parameter - change drive and directory.
![Page 56: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/56.jpg)
Ch 2 56
Activity—Changing Activity—Changing DirectoriesDirectories
KEY CONCEPTS: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
![Page 57: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/57.jpg)
Ch 2 57
Global File Specifications: Global File Specifications: Wildcards, the ?, and *Wildcards, the ?, and *
Global file specifications (wildcards): Can operate on group of files
instead of just a single file
![Page 58: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/58.jpg)
Ch 2 58
Global File Specifications: Global File Specifications: Wildcards, the ?, and *Wildcards, the ?, and *
* - represents a group of characters.
? - represents a single character.
![Page 59: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/59.jpg)
Ch 2 59
Activity—DIR and Activity—DIR and WildcardsWildcards
KEY CONCEPTS: Locating files with insufficient data Using * and *.* Using ? and ??? Using *.SYS
![Page 60: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/60.jpg)
Ch 2 60
RedirectionRedirection
Keyboard: Standard input device
Screen: Standard output device
![Page 61: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/61.jpg)
Ch 2 61
RedirectionRedirectionRedirection: Changes output from monitor to
somewhere else (usually file or printer) To work with printer must be local
printer Works only with commands that write
to standard output
![Page 62: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/62.jpg)
Ch 2 62
RedirectionRedirection
Redirection syntax command: COMMAND > DESTINATION
(Space required on both sides of >)
![Page 63: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/63.jpg)
Ch 2 63
Activity—Redirecting Activity—Redirecting Output to a FileOutput to a File
KEY CONCEPTS: Redirecting output to a file Redirection is “instead of” procedureDealing with write-protected disks
![Page 64: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/64.jpg)
Ch 2 64
Redirecting OutputRedirecting Outputto the Printerto the Printer
Can redirect computer output to a file or to a printer.
To redirect to printer need a local printer.
![Page 65: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/65.jpg)
Ch 2 65
Redirecting OutputRedirecting Output to the Printer to the Printer
Printers device names: PRN, LPT1, LPT2 and sometimes
LPT3.
![Page 66: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/66.jpg)
Ch 2 66
Activity—Redirecting the Activity—Redirecting the Output to the PrinterOutput to the Printer
KEY CONCEPTS: Redirection Hardware solutions
![Page 67: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/67.jpg)
Ch 2 67
Activity—Redirecting the Activity—Redirecting the Output to the PrinterOutput to the Printer
Fig 2.2 Redirected Output p.79Fig 2.2 Redirected Output p.79
![Page 68: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/68.jpg)
Ch 2 68
Getting HelpGetting Help
Documentation: Reference manual that comes
with any software package
![Page 69: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/69.jpg)
Ch 2 69
Getting HelpGetting Help
In DOS 6.0 and above, documentation provided less
in written form and more online.
![Page 70: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/70.jpg)
Ch 2 70
Getting HelpGetting Help
For help in DOS environment: Key in command, then a space,
forward slash, and question mark Use HELP followed by command
name
![Page 71: Ch 21 Command Syntax Using the DIR Command with Parameters and Wildcards](https://reader035.vdocuments.site/reader035/viewer/2022081515/56649e565503460f94b4da9b/html5/thumbnails/71.jpg)
Ch 2 71
Activity—Getting Help Activity—Getting Help with a Commandwith a Command
KEY CONCEPT: Results of commands:
? ON O-N S BLP B/L/P
E D