How do I round it to the next 5th interval?
# date
Sat Oct 13 22:09:25 IST 2012
# date '+%H-%M'
22-09
the output should be
22-10
When the minute is 58 it should round to 00 and not 60 though.
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1 Answers
1
You can tweak this:
date '+%H-%M' | awk -F- '{ while( $2 % 5 != 0 ){ $2++ }; print $1, $2 % 60 }'
Example:
$ date '+%H-%M' | awk -F- '{ while( $2 % 5 != 0 ){ $2++ }; print $1, $2 % 60 }'
18 55
How it works:
- Split the time over a hyphen
- Increment the minute until it divides 5
- Output the result with the minute modulo 60, so 60 -> 0.
Jay
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Great solution! Just remember to handle rollovers. – Philip Oct 13 '12 at 18:53
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The question isn't too clear for me, I thought the user wanted 11:56 -> 11:00 though that's probably not very practical. It'll leave adding one to `$1` (`% 24`) as an exercise to the reader :-) – Jay Oct 13 '12 at 21:56
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Close. But I am not able to round 45-49 to 50 and 05-59 should become 06-00 and not 05 0 – shantanuo Oct 14 '12 at 00:18
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Yes, that's because I didn't give you a full solution, only a very large pointer as to how I'd do it. – Jay Oct 14 '12 at 09:52