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Download FI.zip, an alternative to the DIR command, which provides file age and size filtering, security, device, alternate data streams, and file link information.

When you type fi /?, you receive:

Version 0.13, Copyright (C)2002, Frank P. Westlake.
Prints a list of files.

FI [options] file[s]   [[options]  file[s] [. . .]]

file[s]  May include wild cards. Use the current directory indicator (.) to
refer to a directory, ex: FI C:\temp\.

Options, must precede 'file[s]':
/A         Attribute filter, Prints only the files with specified attributes.
Ex: /A+SH-R  (prints only the files with S and H but without R)
/B         Prints only the file name.
/C         Format numbers with a separator (default). Use /-C to disable.
/D         Print information on the device, for example: /D C: or \\.\
/G[A|C|W]"<"|"="|">"value[/divisor]
Filters files by age in days. If '/divisor' is given, the day value
is divided by that value (i.e. /24 for hours, /1440 for minutes).
A=last access, C=creation, W=last write. Default is W.
/H         Include alternate data stream names. Printed as 'file:stream'.
/L         Include link index and the number of links as first two columns.
/Q         Include owner in brief listing or SIDs in verbose listing.
/S         Displays files in specified directory and all subdirectories.
/T[A|C|W][G]
Print the time stamp of the file (default). Use /-T to disable. If
'G' is included print age instead of time.
A=last access, C=creation, W=last write. Default is W.
Examples: /TC  /TCG  /-T
/V         Print detailed information for each file.
/X         Use short file names.
/Z["<"|"="|">"value]
Filters files by size (default). Use /-Z to disable printing of
file size.

The hyphen may be used to reverse the effect of an option.

Comparison operators must be quoted somehow: /z"="0 "/z=0" /"z=0"

Swirches may be predefined in an environment variable with the name of this
program, for example 'SET FI.EXE=/LHQ-C'. The program name may vary.

Codes displayed with trustee rights [T:RWXDPO:PDF+]:
T=Either "Allows" or "Denies" the displayed permissions.
R=Read, W=Write, X=Execute, D=Delete, P=Permissions write, O=Owner write.
P=Primary object, D=Directories inherit, F=Files inherit, +=Propagated

Examples:

FI C:\WINNT\.
FI "/g>7" /ash-r C:\WINNT\*.exe

FI "/z=0" C:\WINNT\*.exe

Scripting Example
If you wanted to delete all the files in the C:\Logs directory whose last write date is greater than 7 days:

for /f "Tokens=*" %%f in ('fi /A-d /b /gw">"7 C:\Logs\*.*') do del /q "%%f"