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  1. digs = "filepath/23-00.xlsx"
  2. sub("^\\D+(\\d+).*", "\\1", digs)
Success #stdin #stdout 0.26s 39060KB
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Standard input is empty
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[1] "23"
https://ideone.com/YgcYBg
language:
R (R 3.5.2)
created:
3 years ago
visibility:
secret

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