Try:

Code:

LC_ALL=C
# or maybe 
LC_ALL=POSIX

Each of those settings yo displayed is an enviromnment variable that can be set independently. LC_ALL is the only one that changes all of the other settings.

One place that explains locale settings in a useful way is to go to
The Open Group - Making Standards Work and search for locale. It is many pages of reading. Neo also placed a link to get the POSIX standards in pdf format - it is on the forums here.