The format of commands in DOS

---------------siwuxie095

in DOS, commands use the general form of the format

the form of expression in Chinese is:

[path] keyword [Drive letter] [path] file name [extension] (parameter) [parameter]

the notation is expressed in the form of:

[path] keyword [D:] [path] filename (EXT) [Parm]

Keywords are essential, such as dir in the dir command, Other items are optional and are selected as needed.

Drive letter, that is, the driver letter, such as A:B: c:d: e:f: etc., omit this parameter to select the default drive.

Path , separated by \ (backslash)

The drive letter and Path are joined together to form the full path. Write separately in the command format because in most cases, only the drive letter is used and no subdirectories are used

Path when placed in front of a keyword, indicates the path to which the external command file resides.

If this external command file is in the current path (that is, under the current subdirectory) or in another default directory set by the path command, [path] can be omitted

in DOS, a standard syntax format that represents command usage

Take the shutdown shutdown command as an example:

Shutdown Standard syntax format:

shutdown [/I |/L |/s |/////P | h |/e] [/f] [/M \\ComputerName] [/t XXX] [/d [P|u:] xx:yy [/C "comment"] ]

or:

shutdown [-i |-l |-S |-r |-P |-H |-E] [-f] [-M \\ComputerName] [-t XXX] [-D [P:] xx:yy-c "comment"]

- and / equivalence

the contents of the brackets [] are optional .

Brackets [] , in | delimited, indicating that several items that can be selected cannot be selected at the same time, only one or all are selected.

such as shutdown/s/A, execution is invalid.

Angle brackets <> indicates sub-parameters under optional parameters

Curly braces {} indicates that an item must be selected

Ellipsis ... represents the items that can be entered repeatedly

3: Brackets [] delimiter | ellipsis ... The actual use of the command is not used, only in the description of the command format is used

Parameter item: The parameter is usually composed of a slash/ + one letter, auxiliary command, some command can choose multiple parameter items

The command between the brackets and the brackets is out of order

such as shutdown/s/T 3600 and shutdown/t 3600/s

all represent 3,600 seconds (one hour) after shutting down the machine

input of special characters:

Open the CMD command-line window:

enter edit to open the editing window, press Ctrl+p (allow special characters to be entered), and press CTRL + other letters to enter

"made by siwuxie095"

The format of commands in DOS