#!/bin/sh

# Shows the date for "fri week" or "mon last" for e.g.

# License: LGPLv2

Usage () {

echo "Usage: `basename $0` mon|tue|... [next]|week|last" >&2

exit 1

}

[ "$#" -eq "0" ] && Usage

day=$1

which=$2

[ -z "$which" ] && which=next

case $which in

week)

if [ `date +%D` = `date --date="next $day" +%D` ]; then

weeks=+2 #assume we want the next week, not today

else

weeks=+1

fi ;;

last)

weeks=-1;;

next)

if [ `date +%D` = `date --date="next $day" +%D` ]; then

weeks=+1 #assume we want the next week, not today

else

weeks=+0

fi ;;

*)

Usage;;

esac

date --date="$day $weeks weeks" +%x