I have sample CSV data file with 1M records with 1 date (14/03/2017 00:11:17) only. I need to generate 6 month data from this sample CSV file. Bash script taking 20 Minutes to generate 1 day data.DATA SAMPLE '12/01/2017 03:22:17,sampledata,1234,sample,123455,67546464'EXPECTED RESULT'01/01/2017 03:22:17,sampledata,1234,sample,123455,67546464''02/01/2017 03:22:17,sampledata,1234,sample,123455,67546464'to'30/01/2017 03:22:17,sampledata,1234,sample,123455,67546464'
Generate data from sample CSV file
text processing;date;csv