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#! /bin/sh
#
# //shack/is-plenum [YEAR]
#
# where YEAR defaults to the current year
#
y=${1-`date +%Y`}
for m in `seq 1 12`; do
t1=
t2=
t3=
t4=
t5=
week_done=-1
for d in `cal $m $y | tr ' ' '\n' | grep '^[0-9][0-9]\?$'`; do
echo $m | grep -q '^.$' && m=0$m
echo $d | grep -q '^.$' && d=0$d
date=$y-$m-$d
date_week=`date -d $date +%W`
if test $week_done -lt $date_week; then
test -z "$t1" && { test `date -d $date +%u` = 4 && t1=$date && week_done=$date_week; continue; }
test -z "$t2" && { test `date -d $date +%u` = 3 && t2=$date && week_done=$date_week; continue; }
test -z "$t3" && { test `date -d $date +%u` = 4 && t3=$date && week_done=$date_week; continue; }
test -z "$t4" && { test `date -d $date +%u` = 3 && t4=$date && week_done=$date_week; continue; }
test -z "$t5" && { test `date -d $date +%u` = 3 && t5=$date && week_done=$date_week; continue; }
fi
done
test -n "${t1}" && echo $t1
test -n "${t2}" && echo $t2
test -n "${t3}" && echo $t3
test -n "${t4}" && echo $t4
test -n "${t5}" && echo $t5
done
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