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  1. using System;
  2. using System.Text.RegularExpressions;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8.         foreach (string s in new[] {@"d:\tmp\abc_list.csv", @"d:\tmp\xyzx_list.csv", @"d:\tmp\qwert_list.csv"}) {
  9.             var res = Regex.Matches(s, @"(?<=\\)[^_\\]*(?=_[^\\]*$)")[0].Value;
  10.             Console.WriteLine(res);
  11.         }
  12.  
  13. 	}
  14. }
Success #stdin #stdout 0.06s 34136KB
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stdin
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Standard input is empty
stdout
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abc
xyzx
qwert
https://ideone.com/Br1Trj
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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