perl -nle "print $1 if /^CM(\d+)/i and ++$h{$1} ==1; " numbers >unique

(Adjust quotes to system reqs.)

Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

In reply to Re: creating a new file with unique values by BrowserUk
in thread creating a new file with unique values by afasch01

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