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  2  definitions  found 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
  An  extended  version  of  the  {Unix}  command  {grep}.  Egrep 
  accepts  extended  {regular  expression}s  RE  including  "*" 
  following  multi-character  REs;  "+"  (one  or  more  matches);  "?" 
  (zero  or  one  matches);  "|"  separating  two  REs  matches  either 
  REs  may  be  bracketed  with  ().  Despite  its  additional 
  complexity,  egrep  is  usually  faster  that  {fgrep}  or  {grep}. 
  From  V.E.R.A.  --  Virtual  Entity  of  Relevant  Acronyms  13  March  2001  [vera]: 
  Extended  Global  Regular  Expression  Print  (Unix,  GREP)