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This is not a homework.. but a test question and I dont have the answer..
they gave me a hint to use grep expressions such as }[:alpha:] [:alnum:], , ,[:space:][:digit:], ,+,?,-{*,$,^, !

ls -t...

hey,
I need to write a command line (only one line), which prints the content of the files of the last modified sub-folder
thanks in advance

I have to use grep for this