学习Docker的时间遇到一个问题，发现和视频里教的总是会多出一行
这里会有两种原因
- 系统没有安装对应的语言包
- 没有配置正确的语言环境
一般情况下都是第二种情况居多
首先使用 locale -a 查看已安装的语言包
[root@hecs-131104 data]# locale -a 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_COLLATE to default locale: No such file or directory C C.utf8 POSIX en_AG en_AU en_AU.utf8 en_BW en_BW.utf8 en_CA en_CA.utf8 en_DK en_DK.utf8 en_GB en_GB.iso885915 en_GB.utf8 en_HK en_HK.utf8 en_IE en_IE.utf8 en_IE@euro en_IL en_IN en_NG en_NZ en_NZ.utf8 en_PH en_PH.utf8 en_SC.utf8 en_SG en_SG.utf8 en_US en_US.iso885915 en_US.utf8 en_ZA en_ZA.utf8 en_ZM en_ZW en_ZW.utf8
这里有en_US.utf8，所以是第二种情况。执行以下命令即可
echo "export LC_ALL=en_US.UTF-8" >> /etc/profile echo "export LC_CTYPE=en_US.UTF-8" >> /etc/profile source /etc/profile
再次执行命令，就不报那个问题了
[root@hecs-131104 data]# yum install -y yum-utils Last metadata expiration check: 0:18:53 ago on Sat 02 Oct 2021 08:52:23 PM CST. Package yum-utils-4.0.18-4.el8.noarch is already installed. Dependencies resolved. Nothing to do. Complete!
