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DOS and DOS Bath file

DOS and DOS Bath file. IITG. DOS. Disk operating system. XP, Windows 2000 , and Windows NT don't contain DOS. All three OSs support the cmd.exe command shell, which lets you run NT-equivalent DOS commands. In XP, click Start, Run, then type cmd.exe. Dos system.

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DOS and DOS Bath file

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  1. DOS and DOS Bath file IITG

  2. DOS • Disk operating system

  3. XP, Windows 2000, and Windows NT don't contain DOS. • All three OSs support the cmd.exe command shell, which lets you run NT-equivalent DOS commands. • In XP, click Start, Run, then type cmd.exe.

  4. Dos system • Strictly speaking, no permission mechanism

  5. cmd.exe • Command.com

  6. Commands

  7. file redirect pipe Dir | sort |more

  8. There are three types of files you can “run” using DOS. • COM: the oldest of the file formats, small program limited to 64k, everything in one single memory segment. • EXE: allows the program to be larger than 64k, multiple memory segments( data, code and stack) • BAT: batch file. A text file consisting of a series DOS commands.

  9. Batch file • When you run a batch file, DOS reads in each line from the text file and follows the flow control logic expressed by the batch file to execute batch file content properly through a “built-in batch file interpreter”.

  10. command.com • C:\WINDOWS>dir command.* /s/p • Volume in drive C has no label. • Volume Serial Number is 5897-8FA7 • Directory of C:\WINDOWS\SYSTEM32 • 03/19/2004 06:34 PM 50,620 COMMAND.COM • 1 File(s) 50,620 bytes • Total Files Listed: • 1 File(s) 50,620 bytes • 0 Dir(s) 9,717,338,112 bytes free

  11. What is .sys file?

  12. dir format.* /s/p

  13. C:\WINDOWS\SYSTEM32>dir *.com Volume in drive C has no label. Volume Serial Number is 5897-8FA7 Directory of C:\WINDOWS\SYSTEM32 03/19/2004 06:34 PM 7,680 CHCP.COM 03/19/2004 06:34 PM 50,620 COMMAND.COM 03/19/2004 06:35 PM 9,216 DISKCOMP.COM 03/19/2004 06:35 PM 7,168 DISKCOPY.COM 03/19/2004 06:37 PM 69,886 EDIT.COM 03/19/2004 06:37 PM 25,600 FORMAT.COM 03/19/2004 06:37 PM 26,112 GRAFTABL.COM 03/19/2004 06:37 PM 19,694 GRAPHICS.COM 03/19/2004 06:38 PM 14,710 KB16.COM 03/19/2004 06:38 PM 1,131 LOADFIX.COM 03/19/2004 06:39 PM 19,456 MODE.COM 03/19/2004 06:39 PM 15,872 MORE.COM 03/19/2004 06:43 PM 11,264 TREE.COM 03/19/2004 06:44 PM 18,432 WIN.COM 14 File(s) 296,841 bytes 0 Dir(s) 9,717,334,016 bytes free

  14. C:\WINDOWS\SYSTEM32>dir *.exe /p • Volume in drive C has no label. • Volume Serial Number is 5897-8FA7 • Directory of C:\WINDOWS\SYSTEM32 • 11/20/2002 12:50 PM 179,200 ACCWIZ.EXE • 03/19/2004 06:33 PM 4,096 ACTMOVIE.EXE • 02/20/2004 05:13 PM 110,592 AegisI5.exe • 03/19/2004 06:33 PM 91,648 AHUI.EXE • 03/19/2004 06:33 PM 41,984 ALG.EXE • 03/19/2004 06:33 PM 12,498 APPEND.EXE • 03/19/2004 06:33 PM 19,456 ARP.EXE

  15. dir *.bat /s/p

  16. Batch file • Simply a list of DOS commands, glued together by BASIC language like statements.

  17. FOR • GOTO • IF • REM • ECHO • PAUSE • SHIFT

  18. Variables • Environment variables (global variables)

  19. coding

  20. Debugging

  21. Reading documentation of API, readme, help file

  22. Writing documentation for your own file

  23. Space matters in DOS command • Sometimes you have to put space, sometimes, you cannot use space • Nobody can to memorize all the details, but you have access to a computer to try. • Remember, debugging is part of life.

  24. cd my games • Won’t work, because space matters for command line, three arguments now • cd “my games” • It will work

  25. Typing DOS commands on the Windows Command Line prompt is a most efficient and faster way of doing things in Windows XP. Here's a run-down of the most useful DOS commands available in Windows XP. Some of these DOS commands even do not have an visual alternative.

  26. DOS Command-line tools must be run at the prompt of the Cmd.exe command interpreter. To open a DOS window with Command Prompt , click Start, click Run, type cmd, and then click OK. • Or click on Start/All Programs/Accessories/Command Prompt • You can run multiple copies of DOS windows

  27. Use the up/down arrow keys to access previous commands! • History, which is configurable actually

  28. Navigating the directory structure • You can move: • 1. Down the directory structure • 2. Up the directory structure • 3. Across the directory structure • Using GUI based file explore, you need to click, click while the folder visually expand and switch, while using DOS, you need to know the commands!

  29. Find this song • C:\WINDOWS\system32\oobe\images>dir *.wma • Volume in drive C has no label. • Volume Serial Number is 24CA-A6D5 • Directory of C:\WINDOWS\system32\oobe\images • 08/04/2004 08:00 AM 2,624,518 title.wma • 1 File(s) 2,624,518 bytes • 0 Dir(s) 99,089,502,208 bytes free • C:\WINDOWS\system32\oobe\images>

  30. Two modes • Interactive • Batch mode

  31. To open a Windows DOS windows, click on Start/All Programs/Accessories/Command Prompt

  32. Use the up/down arrow keys to access previous commands! • History, which is configurable actually

  33. Navigating the directory structure • You can move: • 1. Down the directory structure • 2. Up the directory structure • 3. Across the directory structure • Using GUI based file explore, you need to click, click while the folder visually expand and switch, while using DOS, you need to know the commands!

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