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  1. x <- c('SEF001DT45','BV004MF')
  2. sub('.*?[A-Z]{2}.*?([A-Z]{2}).*', '\\1', x)
Success #stdin #stdout 0.3s 38840KB
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[1] "DT" "MF"
https://ideone.com/Zv9UMl
language:
R (R 3.5.2)
created:
3 years ago
visibility:
secret

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