what date command are you using? (i know of no date command that takes differences).
On May 31, 2012, at 7:32 AM, Frank Bulk wrote: > True, no April 31st, but there's an April 30. =) > > I don't understand why it's OK to assume a 30-day month. If someone wants > 30 days then just do a "date -d '-30 days'" -- one could just as well assume > the 1 month is 4 weeks or two fortnights. > > Frank > > -----Original Message----- > From: Jonathan [mailto:lo...@redigloo.org] > Sent: Thursday, May 31, 2012 9:30 AM > To: frnk...@iname.com > Cc: Tech@lists.lopsa.org > Subject: Re: [lopsa-tech] Date function seems assume 30-day month > > "Thirty days hath September, April, June and November..." > > There is no 31st April. > > $ date -d '-1 month' > Tue May 1 15:28:44 BST 2012 > $ date -d '-2 month' > Sat Mar 31 15:28:52 BST 2012 > > Jonathan. > > On 31/05/12 15:22, Frank Bulk wrote: >> I noticed a daily script was giving out some incorrect output, and looking >> at it more closely I saw that the date function assumes a 30-day month: >> >> nagios:/# date >> Thu May 31 09:22:02 CDT 2012 >> nagios:/#nagios:/# date -d '-1 month' >> Tue May 1 09:19:54 CDT 2012 >> nagios:/# >> >> Shouldn't the output be April 31st? >> >> Frank >> >> >> >> _______________________________________________ >> Tech mailing list >> Tech@lists.lopsa.org >> https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech >> This list provided by the League of Professional System Administrators >> http://lopsa.org/ > > -- > Jonathan Crompton > > > > _______________________________________________ > Tech mailing list > Tech@lists.lopsa.org > https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ ------------------ Andrew Hume (best -> Telework) +1 623-551-2845 and...@research.att.com (Work) +1 973-236-2014 AT&T Labs - Research; member of USENIX and LOPSA
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