Multiple choice unix

Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?





    

      
    
            
  1. 
              
    cat emp[!0-9]
    
    
            
    2. 
            
  2. 
              
    more [emp][!0-9]
    
    
            
    3. 
            
  3. 
              
    cat emp[x-z]
    
    
            
    4. 
            
  4. 
              
    cat emp[a-z]
    
    
            
    5. 
      

    


    

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        A
        Correct answer
      

        

          Explanation
          

            
The wildcard [!0-9] matches any single character that is not a digit. Combined with emp, it targets files starting with 'emp' followed by a non-numeric character. Option 304 uses more and incorrect brackets, while 305 and 306 are too restrictive, only matching specific lowercase letter ranges.


          

        

    

  



          

      
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