The ftype command Displays or modifies file types that are used in file name extension associations. If used without an assignment operator (=), this command displays the current open command string for the specified file type. If used without parameters, this command displays the file types that have open command strings defined.
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This command is only supported within cmd.exe and is not available from PowerShell. Though you can use cmd /c ftype
as a workaround.
ftype [<filetype>[=[<opencommandstring>]]]
Parameters
Parameter |
Description |
|
|
<filetype> |
Specifies the file type to display or change. |
|
|
<opencommandstring> |
Specifies the open command string to use when opening files of the specified file type. |
|
|
/? |
Displays help at the command prompt. |
Remarks
The following table describes how ftype substitutes variables within an open command string:
Variable |
Replacement Value |
%0 or %1 |
Gets substituted with the file name being launched through the association. |
%* |
Gets all of the parameters. |
%2 , %3 , ... |
Gets the first parameter ( |
%~<n> |
Gets all of the remaining parameters starting with the nth parameter, where n can be any number from 2 to 9. |
Examples
To display the current file types that have open command strings defined, type:
ftype
To display the current open command string for the txtfile file type, type:
ftype txtfile
This command produces output similar to the following:
txtfile=%SystemRoot%\system32\NOTEPAD.EXE %1
To delete the open command string for a file type called example, type:
ftype example=
To associate the .pl file name extension with the PerlScript file type and enable the PerlScript file type to run PERL.EXE, type the following commands:
assoc .pl=PerlScript
ftype PerlScript=perl.exe %1 %*
To eliminate the need to type the .pl file name extension when invoking a Perl script, type:
set PATHEXT=.pl;%PATHEXT%