(C) 2003, Tim Maher       1-16       www.TeachMePerl.com
Grep Shortcomings

Main Deficiencies of UNIX grep/egrep
can't show much context for matches, like:
      line above match
      line containing match
      line below match

can't match across lines
can't highlight matches
some lack word-boundary metacharacter 
makes it hard to avoid sub-string matches!
switching to egrep to get that metacharacter
can mutate meanings of other metachars