Fix Linux Cannot set LC_CTYPE to default locale

这不是个错误, 只是个警告, 场景是在Ansible中 ,长这样

manpath: can't set the locale; make sure $LC_* and $LANG are correct locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory

不会中断执行, 但是会显示在执行结果里, 烦人的很.

原因是: 你的系统是阉割版本 (精简版本) , 语言包被清理了. 以下是经过验证的修复脚本 直接执行即可.

#!/bin/bash
# 强制当前 shell 使用标准 C 环境，防止脚本输出乱码或报错
export LC_ALL=C
export LANG=C

echo ">>> 1. 检查 en_US.UTF-8 是否已存在..."
if locale -a | grep -qi "en_us.utf8"; then
    echo "Locale en_US.UTF-8 已存在，跳过生成步骤。"
else
    echo "Locale 不存在，尝试基础生成..."

    # 针对 EL8/EL9 的标准修复方法：直接安装英语语言包
    if command -v dnf >/dev/null 2>&1; then
        echo "检测到 DNF (EL8/EL9)，正在安装 glibc-langpack-en..."
        dnf install -y glibc-langpack-en || true
        localedef -c -i en_US -f UTF-8 en_US.UTF-8 || true
    fi

    # 如果还是不行（可能是 EL7），再尝试 localedef 或重装
    if ! locale -a | grep -qi "en_us.utf8"; then
        echo "尝试手动生成..."
        localedef -c -i en_US -f UTF-8 en_US.UTF-8 || {
            echo "localedef 失败，尝试最后的重装手段..."
            # 如果 reinstall 报错找不到包，改用 install 确保同步最新版本
            yum install -y glibc-common || yum reinstall -y glibc-common
            localedef -c -i en_US -f UTF-8 en_US.UTF-8
        }
    fi
fi

echo ">>> 4. 检查并修正配置文件..."
if [ ! -f /etc/locale.conf ] || ! grep -q "en_US.UTF-8" /etc/locale.conf; then
    echo 'LANG="en_US.UTF-8"' > /etc/locale.conf
    source /etc/locale.conf
    echo "已更新 /etc/locale.conf"
fi

[ -f /etc/environment ] && (grep -q "LANG=" /etc/environment || echo 'LANG="en_US.UTF-8"' >> /etc/environment)

# 最终验证，此时不应再报 "Cannot set LC_CTYPE"
echo ">>> 5. 最终状态验证:"
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8
locale