Failed to set locale, defaulting to C
You can see this often in CentOS because you never set the locale for your Linux.
You can try this
echo "export LC_ALL=en_US.UTF-8" >> /etc/profile export LC_ALL=en_US.UTF-8 export LANG=en_US.UTF-8 export LANGUAGE=en_US.UTF-8 export LC_COLLATE=C export LC_CTYPE=en_US.UTF-8
Then disconnect and reconnect to your bash.