chomp(my @newest = (`dir /A-D /O-D /D`)[5 .. 24]); # lines 0 - 4 - hea
+der

say for @newest;
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If for Windows only, the switches,

/A-D files only
/O-D ordered from newest to oldest
/D output in column
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Don't know if this will be faster for you. Type help dir at your command prompt.