in reply to Numbers only in a string

s/[\D]+//g;

\D is the opposite of \d so it will replace anything that's not a digit.

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Re^2: Numbers only in a string
by davidrw (Prior) on Sep 08, 2005 at 16:23 UTC
    don't need to use a character class here -- just: 
      s/\D+//g;

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