from ksh93 do
builtin date
and then use the mutiple date-operand feature to set the date
that "final last month" operates on to capture the problem
date -f%Y-%m-%d '2011-01-01' 'final last month'
date -f%Y-%m-%d '2011-01-01' 'final last month'
---
# this script that tests "$final_last" for all days from 2007 through 2011
# this will capture a leap year
# with debug=0 you should get no output
builtin date
typeset -Z2 mm dd
debug=0
final_last='final last month'
final_this='final day'
for ((yyyy = 2007; yyyy <= 2011; yyyy++))
do for ((mm = 1; mm <= 12; mm++))
do dd=1
exp=$(date -f%Y-%m-%d $yyyy-$mm-$dd "$final_last")
exp=${exp#????-??-???}
DD=$(date -f%Y-%m-%d $yyyy-$mm-$dd "$final_this")
DD=${DD#????-??-???}
if [[ ${DD%-??} != $yyyy-$mm ]]
then print -u2 "$yyyy-$mm-$dd '$final_this' failed --
expected $yyyy-$mm-??, got $DD"
else (( debug )) && print $exp
DD=${DD#????-??-}
for ((dd = 2; dd <= DD; dd++))
do got=$(date -f%Y-%m-%d $yyyy-$mm-$dd
"$final_last")
got=${got#????-??-???}
(( debug )) && print $got
if [[ $exp != $got ]]
then print -u2 "$yyyy-$mm-$dd '$final_last'
failed -- expected $$exp, got $got"
fi
done
fi
done
done
---
On Wed, 12 Jan 2011 08:21:07 -0600 [email protected] wrote:
> We have been using the
> printf "%(%Y-%m-%d)T\n" "final last month"
> with no problems to find the last day of the prior month with no
> problems for quite some time. This January we discovered that it returns
> 11/30/10, not 12/31/10.
> It may be that the problem has been a January issue all along and just
> was not noticed by us or anybody else. It may also be a new issues.
> Has anybody else discovered this issue?
> Tom Lamm
> Marcal Systems
> _______________________________________________
> ast-developers mailing list
> [email protected]
> https://mailman.research.att.com/mailman/listinfo/ast-developers
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