#!/usr/local/bin/perl
use Time::Local;
for($_=time;$_<timelocal(0,0,0,(split/\//,$ARGV[0])[0..2])+86400;$_+=86400){
@_=localtime($_);$;++unless$_[6]==6||$_[6]==0}print"$; working days left.\n"

##</code><code>##

#!/usr/local/bin/perl
use Time::Local;$,+=(localtime($^T+=86400))[60]!~/[60]/while$^T-86400
<timelocal 0,0,0,split'/',$ARGV[0];print''," working days left\n"#:^)