netenv

The netenv utility displays the current input and output stream encodings and code pages, as well as the current culture:

input code page: 850
input Windows code page: 1252
input encoding: Western European (DOS)
output code page: 850
output Windows code page: 1252
output encoding: Western European (DOS)
culture: de-AT
LCID: 3079
culture display name: German (Austria)

Changing the culture info to English using the -ci switch

netenv -ci en-us

generates this output

input code page: 850
input Windows code page: 1252
input encoding: Western European (DOS)
output code page: 850
output Windows code page: 1252
output encoding: Western European (DOS)
culture: en-US
LCID: 1033
culture display name: English (United States)