Does Accumulo egrep support regex negative lookahead?

[Donald Mackert]

Hello,

    Does the accumulo egrep command support regex negative look ahead?

    We are trying to find all rows that do not have a UUID pattern using
the following sample command

   egrep -c column ^\\{\"value\"\\:\\{\"itemId\"\\:\"((?\![0-9a-f]{8}-).)*$

  The following egrep returns all rows that match the pattern

  egrep -c column ^\\{\"value\"\\:\\{\"itemId\"\\:\"([0-9a-f]{8}-).*$

Thank you,

Don