How to access files in subdirectories?

Question

I have several subdirectories beneath in a main directory, and each subdirectory contains one or two text files. I need to copy these text files to another directory.

H

Answer 1

This is simple in a one-line Perl program

perl -MFile::Copy=copy -e'copy($_, "/d/work/abcd") for </d/work/abc/*/*.txt>'