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Convert DD-MMM-YYYY to MM-DD-YYYY

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# 1  
Old 04-06-2009
Convert DD-MMM-YYYY to MM-DD-YYYY
I have a file which has 100k+ records like this

Code:










Code:



abc,05-JUN-1974,def,lkj,aaa
def,11-SEP-1975,ghj,dis,dea









 

I want to convert ex 05-JUN-1974 to 06/05/1974

 

Please help me with awk script to convert the whole file into MM-DD-YYYY

 

Thank you!







        

        

       



            
            
            
            


            

            
            




            
                
            

            

        



        


        


 


        

        
        

        


 

            
        






     

          
     





      

          
      











		

















    
    

        

            



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                    Old
                
                
                    04-06-2009
                    
                    
                
                
                
                
            

        

    

    

        





    

    


        

        
            

                
                
                    Convert DD-MMM-YYYY to MM-DD-YYYY
                
            

            

        


        
Try this:






Code:



awk -F, '
BEGIN {
  split("JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC", month, " ")
  for (i=1; i<=12; i++) mdigit[month[i]]=i
}
{ m=substr($2,4,3)
  $2 = sprintf("%02d/%02d/%04d",mdigit[m],substr($2,1,2),substr($2,8,20))
  print
}' OFS="," file







Use nawk or /usr/xpg4/bin/awk on Solaris if you get errors.



Regards







        

        

       



            
            
            
            


            

            
            




            
                
            

            

        



        


        


 


        

        
        

        


 

            
        




    

        

          
        

    

    

       

          
        

    









		

















    
    

        

            



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                    Old
                
                
                    04-06-2009
                    
                    
                
                
                
                
            

        

    

    

        





    

    


        

        


        
Even easier:



date --date='05-JUN-1974' '+%m-%d-%Y'



Example:

[root@scm-lnx svn_repo]# date --date='05-JUN-1974' '+%m-%d-%Y'

06-05-1974



Of course this assumes you're using Linux and your date utility allows the --date option.







        
          
            

                

                
                    
                        Last edited by sandholm; 04-06-2009 at 04:28 PM..
                    
                    
                        Reason: added example
                    
                
            

   
        

        

       



            
            
            
            


            

            
            




            
                
            

            

        



        


        


 


        

        
        

        


 

            
        




    

         

          
        

    

    

       

          
        

    









		








            

        


        
        



        



        
        

            


                
                    
                        

                        
                    
                    
                
            




        





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