Re: Epoch Seconds to YYYY-MM-DD
Re: Epoch Seconds to YYYY-MM-DD
- Subject: Re: Epoch Seconds to YYYY-MM-DD
- From: Deivy Petrescu <email@hidden>
- Date: Mon, 29 Apr 2013 11:55:22 -0400
On Apr 27, 2013, at 16:09 , Nigel Garvey <email@hidden> wrote:
> Marconi wrote on Sat, 27 Apr 2013 08:25:32 -0700:
>
>> I am trying to pass a number like "1157445071" to a shell script but AS
>> keeps converting the passed value, such as "1157445071", to
>> "1.157445071E+9" scientific notation.
>>
>> How do I prevent AS turning large integers into mush that the shell
> script
>> does not like?
>>
>> FYI, I'm just doing do shell script "date -r [some value for epoch
> seconds]
>> '+%Y-%m-%d'"
>>
>> What I'm using this for is starting with today's date and generating
> dates
>> (format YYYY-MM-DD) back for each of X dates prior.
>>
>> I.e.,
>>
>> 2013-04-27
>> 2013-04-26
>> 2013-04-25
>> 2013-04-24
>> 2013-04-23
>> ...
>> 2013-03-31
>> 2013-03-30
>
> Perhaps something like this:
>
> set n to "1157445071"
> set X to "28"
>
> do shell script "for ((i=0 ; i<=" & X & " ; i++)) ; do date -r $( echo " & n & "-86400 * $i | bc ) '+%Y-%m-%d' ; done"
>
> Or in Applescript:
>
> set today to (current date)
> set theDates to {}
> repeat with X from 0 to 28
> set {year:y, month:m, day:d} to (today - X * 86400)
> tell (y * 10000 + m * 100 + d as text) to set end of theDates to text 1 thru 4 & "-" & text 5 thru 6 & "-" & text 7 thru 8
> end repeat
>
> return theDates
>
> Or this hack still works in Snow Leopard!:
>
> set today to (current date)
> set theDates to {}
> repeat with X from 0 to 28
> set end of theDates to text 1 thru 10 of ((today - X * days) as «class isot» as string) -- NB. 'as string', not 'as text'.
> end repeat
>
> return theDates
>
>
> NG
>
Nigel,
It works in ML as well.
Deivy Petrescu
email@hidden
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