Microsoft DOS doskey command
Doskey is an MS-DOS utility that allows a user to keep a history of commands used on the computer. Doskey allows frequently used commands to be used without having to type the command each time its needed.
The doskey command is an external command and is available in the below Microsoft operating systems as doskey.exe.
Windows Vista and later syntax
DOSKEY [/REINSTALL] [/LISTSIZE=size] [/MACROS[:ALL | :exename]] [/HISTORY] [/INSERT | /OVERSTRIKE] [/EXENAME=exename] [/MACROFILE=filename] [macroname=[text]]
|/REINSTALL||Installs a new copy of Doskey.|
|/LISTSIZE=size||Sets size of command history buffer.|
|/MACROS||Displays all Doskey macros.|
|/MACROS:ALL||Displays all Doskey macros for all executables which have Doskey macros.|
|/MACROS:exename||Displays all Doskey macros for the given executable.|
|/HISTORY||Displays all commands stored in memory.|
|/INSERT||Specifies that new text you type is inserted in old text.|
|/OVERSTRIKE||Specifies that new text overwrites old text.|
|/EXENAME=exename||Specifies the executable.|
|/MACROFILE=filename||Specifies a file of macros to install.|
|macroname||Specifies a name for a macro you create.|
|text||Specifies commands you want to record.|
The up and down arrows recall commands; Esc clears command line; F7 displays command history; Alt+F7 clears command history; F8 searches command history; F9 selects a command by number; Alt+F10 clears macro definitions.
The following are some special codes in Doskey macro definitions:
|$T||Command separator. Allows multiple commands in a macro.|
|$1-$9||Batch parameters. Equivalent to %1-%9 in batch programs.|
|$*||Symbol replaced by everything following macro name on the command line.|
Windows XP and earlier syntax
DOSKEY [/switch ...] [macroname=[text]]
|/BUFSIZE:size||Sets size of macro and command buffer||(default:512)|
|/ECHO:on|off||nables/disables echo of macro expansions||(default:on)|
|/FILE:file||Specifies file containing a list of macros|
|/HISTORY||Displays all commands stored in memory|
|/INSERT||Inserts new characters into line when typing|
|/KEYSIZE:size||Sets size of keyboard type-ahead buffer||(default:15)|
|/LINE:size||Sets maximum size of line edit buffer||(default:128)|
|/MACROS||Displays all DOSKey macros|
|/OVERSTRIKE||Overwrites new characters onto line when typing||(default)|
|/REINSTALL||Installs a new copy of DOSKey|
|macroname||Specifies a name for a macro you create|
|text||Specifies commands you want to assign to the macro|
|UP,DOWN||arrows recall commands|
|Esc||clears current command|
|F7||displays command history|
|Alt+F7||clears command history|
|[chars]F8||searches for command beginning with [chars]|
|F9||selects a command by number|
|Alt+F10||clears macro definitions|
Below are special codes you can use in DOSKey macro definitions.
|$T||Command separator: allows multiple commands in a macro|
|$1-$9||Batch parameters: equivalent to %1-%9 in batch programs|
|$*||Symbol replaced by everything following macro name on the command line|
Starts doskey and allows you to press the up or down command to see history, or right or left to reType previous command.
Show the history of commands run at the command prompt. Since Doskey is loaded by default with the most recent versions of Windows this command is a quick way of determine what commands have been run on any open Windows command line window.
Specifying a buffer size larger than 61900 for DOSKEY causes the computer to freeze.
DOSKEY supports approximately 61900 bytes. Due to an error in the DOSKEY program that causes DOSKEY to mark memory as unused when it terminates and stays resident, specifying a buffer size larger than this amount causes the computer to hang.