• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Mac dates ==> UNIX dates
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Mac dates ==> UNIX dates


  • Subject: Mac dates ==> UNIX dates
  • From: Marc Myers <email@hidden>
  • Date: Fri, 20 Oct 2006 13:28:10 -0600

Is there a simple way to convert a Mac date into an integer that can be used as the -r parameter in the UNIX "date" command?

Currently, I'm using "date" in a shell script to generate a date/time string representing the UNIX Epoch. I coerce that into a Mac date. Then I subtract the Epoch date from the desired date/time, giving me a result in seconds in scientific notation. I use a text routine to convert the scientific notation to an integer (as text). That integer can be plugged into the "date" command's -r parameter.

on formDate(theDate)
--get time 0 for the Unix side
set theEpoch to date (do shell script "date -r 0 +\"%a %b %e %Y %H:%M:%S\"")

--current time in seconds from time 0, as text (for next bit)
set theDiff to (theDate - theEpoch) as text

--convert the scientific notation to an "integer" string
if theDiff contains "E" then
set thePower to (last character of theDiff) + 1
set theDiff to (first character of theDiff & (characters 3 thru -4 of theDiff as text))
repeat until (length of theDiff) = thePower
set theDiff to theDiff & "0"
end repeat
end if

--do the shell script
return (do shell script ("date -r " & theDiff & " +\"%D %T\""))
end formDate



Is there a simpler way to do a conversion? From the man page, it sounds like curl_getdate(3) would do it, but it doesn't seem to be installed. It sure would be nice if AppleScript had a "long integer" class...


Marc [10/20/2006 01:27:38 PM]

_______________________________________________
Do not post admin requests to the list. They will be ignored.
AppleScript-Users mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden


  • Follow-Ups:
    • Re: Mac dates ==> UNIX dates
      • From: kai <email@hidden>
    • Re: Mac dates ==> UNIX dates
      • From: Philip Aker <email@hidden>
  • Prev by Date: FileMaker 8 AppleScript question....
  • Next by Date: Re: Why is it?
  • Previous by thread: Re: FileMaker 8 AppleScript question....
  • Next by thread: Re: Mac dates ==> UNIX dates
  • Index(es):
    • Date
    • Thread