bash - 检查是否在 bash 中启用了特定的语言环境

Question

我的脚本需要运行具有特定语言环境的程序才能正常工作，因此我希望它检查该语言环境是否可用。我现在已经使用了这个 hack，但我认为有更好的方法来做到这一点。

grep ^ja_JP /etc/locale.gen &>/dev/null || echo >&2 "enable any of the japanese locales first"

Answer 1

man locale would tell you that locale -a would list all available locales.

Instead say:

locale -a | grep -q ^ja_JP || echo "enable any of the japanese locales first"

Answer 2

locale -a should list all the available locales:

if locale -a | grep ^ja_JP ; then
    # locale installed...
else
    # locale not installed...
fi