#!/bin/ksh #..# @(#) Compute date differences #..# systems: #..# sites: tag=`basename $0` tm=/tmp/$tag tmp=${tm}$$ set -A AWK $(whence nawk) [ ${#AWK[*]} -gt 0 ] && alias awk=$AWK usage="usage: $tag // //" date2day() { echo $* | awk -F/ ' BEGIN { mtab["Jan"] = 1 mtab["Feb"] = 2 mtab["Mar"] = 3 mtab["Apr"] = 4 mtab["May"] = 5 mtab["Jun"] = 6 mtab["Jul"] = 7 mtab["Aug"] = 8 mtab["Sep"] = 9 mtab["Oct"] = 10 mtab["Nov"] = 11 mtab["Dec"] = 12 daysin[0] = 0 daysin[1] = 31 daysin[2] = 28 daysin[3] = 31 daysin[4] = 30 daysin[5] = 31 daysin[6] = 30 daysin[7] = 31 daysin[8] = 31 daysin[9] = 30 daysin[10] = 31 daysin[11] = 30 daysin[12] = 31 for (m = 1; m