Listing file names (primary file name & file extension)

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stephjo
Posts: 12
Joined: 03 Feb 2014 02:39

Listing file names (primary file name & file extension)

#1 Post by stephjo » 20 Aug 2015 07:35

Hello,

I would like to list files in a directory into a new text file. Each file name is 8.3 characters, with 8 characters for the primary file name, a dot, and file extension of 3 characters. For every file, I would like the primary file name in one line and file extension in the following line. How can I do this?

Code: Select all

for /f "delims=" %%a in ('dir *.* /b') do (
echo LEFT(%%a, 8) >> txt.txt
echo RIGHT(%%a, 4) >> txt.txt
)



Thanks!
-Steph

Squashman
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Posts: 4465
Joined: 23 Dec 2011 13:59

Re: Listing file names (primary file name & file extension)

#2 Post by Squashman » 20 Aug 2015 09:16

You can use the variable modifiers.

From the FOR help file.

Code: Select all

In addition, substitution of FOR variable references has been enhanced
You can now use the following optional syntax:

    %~I         - expands %I removing any surrounding quotes (")
    %~fI        - expands %I to a fully qualified path name
    %~dI        - expands %I to a drive letter only
    %~pI        - expands %I to a path only
    %~nI        - expands %I to a file name only
    %~xI        - expands %I to a file extension only
    %~sI        - expanded path contains short names only
    %~aI        - expands %I to file attributes of file
    %~tI        - expands %I to date/time of file
    %~zI        - expands %I to size of file
    %~$PATH:I   - searches the directories listed in the PATH
                   environment variable and expands %I to the
                   fully qualified name of the first one found.
                   If the environment variable name is not
                   defined or the file is not found by the
                   search, then this modifier expands to the
                   empty string

The modifiers can be combined to get compound results:

    %~dpI       - expands %I to a drive letter and path only
    %~nxI       - expands %I to a file name and extension only
    %~fsI       - expands %I to a full path name with short names only
    %~dp$PATH:I - searches the directories listed in the PATH
                   environment variable for %I and expands to the
                   drive letter and path of the first one found.
    %~ftzaI     - expands %I to a DIR like output line

In the above examples %I and PATH can be replaced by other valid
values.  The %~ syntax is terminated by a valid FOR variable name.
Picking upper case variable names like %I makes it more readable and
avoids confusion with the modifiers, which are not case sensitive.

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