DOS Commands I

The main focus of this post is to provide the detailed command description for each command (in DOS).

ACALC

Calculates the value of a mathematical expression.

ACALC [/T[:]format] expression

  /T           Specifies the output format type

  format         D=Decimal (default)   B=Binary   O=Octal   X=heXadecimal

                 A=All (decimal, binary, octal, and hexadecimal)

  expression   Specifies a valid numeric expression.

Numbers prefixed with 'b', 'o', and 'x' are assumed to be binary, octal,

and hexadecimal respectively.  Decimal numbers are not prefixed.

External - DOS 3.3 and above

Allows programs to open data files in specified directories as if they were in the current directory.

APPEND [[drive:]path[;...]] [/X[:ON | :OFF]] [/PATH:ON | /PATH:OFF] [/E]

APPEND ;

  [drive:]path Specifies a drive and directory to append.

  /X:ON        Applies appended directories to file searches and

               application execution.

  /X:OFF       Applies appended directories only to requests to open files.

               /X:OFF is the default setting.

  /PATH:ON     Applies appended directories to file requests that already

               specify a path.  /PATH:ON is the default setting.

  /PATH:OFF    Turns off the effect of /PATH:ON.

  /E           Stores a copy of the appended directory list in an environment

               variable named APPEND.  /E may be used only the first time

               you use APPEND after starting your system.

Type APPEND ; to clear the appended directory list.

Type APPEND without parameters to display the appended directory list.

External - DOS 2.0 and above

Redirects requests for disk operations on one drive to a different drive.

ASSIGN [x[:]=y[:][...]]

ASSIGN /STATUS

  x        Specifies the drive letter to reassign.

  y        Specifies the drive that x: will be assigned to.

  /STATUS  Displays current drive assignments.

Type ASSIGN without parameters to reset all drive letters to original

assignments.

External - DOS 3.0 and above

Displays or changes file attributes.

ATTRIB [+R | -R] [+A | -A] [+S | -S] [+H | -H] [[drive:][path]filename] [/S]

  +   Sets an attribute.

  -   Clears an attribute.

  R   Read-only file attribute.

  A   Archive file attribute.

  S   System file attribute.

  H   Hidden file attribute.

  /S  Processes files in all directories in the specified path.

+S, -S, +H, and -H are available in DOS 5.0 and above.

Source: Microsft and wikipedia.com

If you find this site useful, please support us. Like our FaceBook Page. You can also contact us by mail: portaltechinfo@gmail.com