regex101: PCRE (Legacy) Match Workspace

Regular Expression

(?:\sF\d+.*?\n\n)\K(\n)

New

A N K U N F T   11.08.15
*** NEUBUCHUNG ***
 11.08.15  xxx  xxx  X3 2830  14:25   17:50
 18.08.15  xxx  xxx  X3 2831  18:40
 F882129  dsdsaidsaia
 F882129  xxxyxyagydaysd



A N K U N F T   18.08.15
*** NEUBUCHUNG ***
 11.08.15  xxx  xxx  X3 2830  14:25   17:50
 18.08.15  xxx  xxx  X3 2831  18:40
 F881554  ZXCXZCXCXZCCXZ
 F881554  xcvcxvcxvcvxc
 F881554  xvcxvcxcvxxvccvxxcv



11.08.15  xxx  xxx  X3 2830  14:25   17:50
 18.08.15  xxx  xxx  X3 2831  18:40
 F881605  xczxcdfsfdsdfs
 F881605  zxccxzxzdffdsfdx

Extraction

A N K U N F T   11.08.15
*** NEUBUCHUNG ***
 11.08.15  xxx  xxx  X3 2830  14:25   17:50
 18.08.15  xxx  xxx  X3 2831  18:40
 F882129  dsdsaidsaia
 F882129  xxxyxyagydaysd



A N K U N F T   18.08.15
*** NEUBUCHUNG ***
 11.08.15  xxx  xxx  X3 2830  14:25   17:50
 18.08.15  xxx  xxx  X3 2831  18:40
 F881554  ZXCXZCXCXZCCXZ
 F881554  xcvcxvcxvcvxc
 F881554  xvcxvcxcvxxvccvxxcv



11.08.15  xxx  xxx  X3 2830  14:25   17:50
 18.08.15  xxx  xxx  X3 2831  18:40
 F881605  xczxcdfsfdsdfs
 F881605  zxccxzxzdffdsfdx