grep - Matching string with regex -


I keep my head against the wall in search of a reggae that matches any of these types of string : 

  - 7928ae02-A-- -7928ae02-B-- -7928ae02-F-- -7928ae02-H-- -7928ae02-Z--   < P> string two dashes, 8 letters of any letter or number, one dash, one uppercase AZ and two dashes  
 Here I am:  
  grep '^ - [a-fA-F0- 9] {8} - [AZ] - $ '   
 
 
 This can work  
  grep - e - '^ - [[alnum:]] {8} - [[: Minister:]] - $ '

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