$ dd if=/dev/zero of=123 bs=512 count=1 1+0 records in 1+0 records out Segmentation fault
$ LANG=C dd if=/dev/zero of=123 bs=512 count=1 1+0 records in 1+0 records out 512 bytes (512 B) copied, 0.00011 seconds, 4.7 MB/s
$ locale LANG=ru_RU.UTF-8 LANGUAGE=ru_RU:ru:en_GB:en LC_CTYPE="ru_RU.UTF-8" LC_NUMERIC="ru_RU.UTF-8" LC_TIME="ru_RU.UTF-8" LC_COLLATE="ru_RU.UTF-8" LC_MONETARY="ru_RU.UTF-8" LC_MESSAGES="ru_RU.UTF-8" LC_PAPER="ru_RU.UTF-8" LC_NAME="ru_RU.UTF-8" LC_ADDRESS="ru_RU.UTF-8" LC_TELEPHONE="ru_RU.UTF-8" LC_MEASUREMENT="ru_RU.UTF-8" LC_IDENTIFICATION="ru_RU.UTF-8" LC_ALL=
$ dd if=/dev/zero of=123 bs=512 count=1
1+0 records in
1+0 records out
Segmentation fault
$ LANG=C dd if=/dev/zero of=123 bs=512 count=1
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0.00011 seconds, 4.7 MB/s
$ locale ru_RU:ru: en_GB:en "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" "ru_RU. UTF-8" ON="ru_ RU.UTF- 8"
LANG=ru_RU.UTF-8
LANGUAGE=
LC_CTYPE=
LC_NUMERIC=
LC_TIME=
LC_COLLATE=
LC_MONETARY=
LC_MESSAGES=
LC_PAPER=
LC_NAME=
LC_ADDRESS=
LC_TELEPHONE=
LC_MEASUREMENT=
LC_IDENTIFICATI
LC_ALL=