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Date arithmetic in Unix shell scripts
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sed, replace first line
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Closed 10 months ago.
I have a large .txt file (100m+) rows with 2 duplicated date columns, delimited by comma. I am looking for an efficient way to subtract 1 day from the given date. If the given date is on the 1st of the month, this should be taken care of and output the 30th/31st of the previous month.
I'd like to rename the columns to startDate and endDate as well.
Input:
Date,Date
2013-12-21,2013-12-21
2013-01-15,2013-01-15
2019-12-09,2013-12-09
2007-04-01,2007-04-01
2011-01-01,2011-01-01
...
Desired Output:
startDate,endDate
2013-12-20,2013-12-21
2013-01-14,2013-01-15
2019-12-08,2013-12-09
2007-03-31,2007-04-01
2010-12-31,2011-01-01
...
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I am new to coding and learning as i type this and I was given the small task by my boss to create a bash script that multiplies any number you input by 10. But, if you enter "69" its supposed to echo "lol" instead of giving a number. Any help please!
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I have an access-file, that I imported in excel as a PivotTable. I want the possibility to sort the data in a slicer as Week numbers. I have grouped and set days to 7, but that only gives me 2020-01-01 - 2020-01-07 for example.
Should I convert the weeknum's already in Access? And then, how do I do that?
Please explain it all, even where to paste the code and how to implement it in Access.
Thank you.
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I am having the current format date 02/16/18 3:33:39PM. How could I use python programming to change it for Year-Month-Day?
You can try this. Convert your date to a datatime object and then do whatever you want from there
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I have a excel sheet where in column (G) there is a timestamp but is in epoch format, how can i convert epoch time to readable time format in excel.
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Try this:
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How can I transform a column with text like "20130213" to DATE?
Basically, I need to calculate the difference in days between 2 dates that come in the text format
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You can use for example
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