Created
          June 13, 2019 16:15 
        
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        Save mhou1981/f7e64bc4fc310b05acd0b790b449f960 to your computer and use it in GitHub Desktop. 
    Egrep Regex for IPv4
  
        
  
    
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  | egrep "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b" | 
  
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