Hi
Todays date command said "last month is this month !"
$ cat /etc/redhat-release
Red Hat Enterprise Linux ES release 4 (Nahant Update 3)
$ date
Thu Jul 31 14:21:21 JST 2008
$ date +%Y-%m
2008-07
$ date --date "last month" +%Y-%m
2008-07
$ date --date 'last month'
Tue Jul 1 14:21:34 JST 2008
why ?