Hi, I have a log file which has the following format ( its nominally CSV ) 

John@gmail.com,1268727836,lots,more,fields

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I would like to change the second field to a date format the DB I am going to load this into will understand rather than Epoch time i.e.

John@gmail.com,2010/03/16 08:23:56,lots,more,fields

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and if possible also add a field at the end of the line containing the original file name i.e.

John@gmail.com,2010/03/16 08:23:56,lots,more,fields,logfile1.log

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Whats an efficient way to do this in perl ( there are lots of files with millions of lines ) ? I have found I can generate an individual date which would work with the following code 

perl -MPOSIX -le 'print strftime "%F %T", localtime 1268727836'

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Its just the looping through the file and running this to sub field 2 in every line that I cant seem to crack - Any help greatly appreciated.

In reply to Convert Epoch times in Logfile by stevbutt

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