Displays or modifies file name extension associations. If used without parameters,assoc displays a list of all the current file name extension associations.

Syntax

assoc [<.[ext]>[=[<filetype>]]]

Parameters

Remarks

• To make changes in associations, you need administrator privileges.

• To remove the file type association for a file name extension, add a white space after the equal sign by pressing the SPACEBAR.

• To associate files without extension to a file type, use just a dot (see the examples).

• To view current file types that have open command strings defined, use theftype command.

• To redirect the output ofassoc to a text file, use the> redirection operator.

Examples

To view the current file type association for the file name extension .txt, type:

assoc .txt

To remove the file type association for the file name extension .bak, type:

assoc .bak=

To view the output ofassoc one screen at a time, type:

assoc | more

To send the output ofassoc to the file assoc.txt, type:

assoc>assoc.txt

Associate.log to text files:

assoc .log=txtfile

Associate files with no extension to text files:

assoc .=txtfile

Related links

• Command-Line Syntax Key

• ftype command