ftype
Updated: January 21, 2005
Displays or modifies file types used in file name extension associations. Used without parameters, ftype displays the file types that have open command strings defined.
Syntax
Ftype [FileType[=[OpenCommandString]]]
Parameters
FileType
Specifies the file type you want to display or
change.
OpenCommandString
Specifies the open command to use when opening files
of this type.
/?
Displays help at the command prompt.
Remarks
- The following table lists how ftype substitutes variables within an OpenCommandString.
| Variable | Replacement value |
| %0 or %1 | Replaced with the file name that you want to open |
| %* | Replaced with all of the parameters |
| %~N | Replaced with all of the remaining parameters, starting with the Nth parameter, where N can be any number from 2 to 9 |
| %2 | Replaced with the first parameter, %3 with the second, and so on |
Examples
To display the current file types that have open command strings
defined, type:
ftype
To display the current open command string for a specific file type, type:
ftypeFileType
To delete the open command string for a specific file type, type:
ftypeFileType=
Type:
ASSOC .pl=PerlScript FTYPE PerlScript=perl.exe %1 %*
To invoke the Perl script, type:
script.pl 1 2 3
To eliminate the need to type the extensions, type:
set PATHEXT=.pl;%PATHEXT%
To invoke the Perl script, type:
script 1 2 3
Formatting legend
| Format | Meaning |
| Italic | Information that the user must supply |
| Bold | Elements that the user must type exactly as shown |
| Ellipsis (...) | Parameter that can be repeated several times in a command line |
| Between brackets ([]) | Optional items |
| Between braces ({}); choices separated by pipe (|). Example: {even|odd} | Set of choices from which the user must choose only one |
| Courier font | Code or program output |