使用Vagrant建立好虚拟机后，经常会出现locale setting failed的问题
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_PAPER = "en_US.UTF-8",
LC_ADDRESS = "en_US.UTF-8",
LC_MONETARY = "en_US.UTF-8",
LC_NUMERIC = "en_US.UTF-8",
LC_TELEPHONE = "en_US.UTF-8",
LC_IDENTIFICATION = "en_US.UTF-8",
LC_MEASUREMENT = "en_US.UTF-8",
LC_CTYPE = "zh_CN.UTF-8",
LC_TIME = "en_US.UTF-8",
LC_NAME = "en_US.UTF-8",
LANG = "en_US"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
通过一下设置，就可以解决这个问题啦
export LANG=en_US:zh_CN.UTF-8 export LC_ALL=C
原文：http://my.oschina.net/square0083/blog/503751