31 Mar
2011
31 Mar
'11
1:41 p.m.
date -d yesterday +%a works for me.
Sadly my WD NAS doesn't know about 'yesterday' :-
root@backup# date -d yesterday +%a date: invalid date `yesterday' root@backup#The NAS uses busybox for the bulk of its commands and 'date' is among those so I guess it's a fairly limited implementation.
Ah, busybox.
http://www.google.co.uk/search?q=busybox+date+yesterday
There's a solution here. Basically, you convert today's date into a number of seconds and then less 86400, before re-converting to a string.
Richard