mkCSGB2312: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/mkCSGB2312 - from package: perl-Unicode-Map

You may install the required package with command yum install {package}

Error in other languages:
mkCSGB2312: bevel nie gevind nie
mkCSGB2312: comandă negăsită
mkCSGB2312: comando não encontrado
mkCSGB2312: commande introuvable
mkCSGB2312: command not found
mkCSGB2312: käsku ei ole
mkCSGB2312: không tìm thấy lệnh
mkCSGB2312: komanda nerasta
mkCSGB2312: Kommando nicht gefunden.
mkCSGB2312: kommandot finns inte
mkCSGB2312: komut yok
mkCSGB2312: nie znaleziono polecenia
mkCSGB2312: níor aimsíodh an t-ordú
mkCSGB2312: no se encontró la orden
mkCSGB2312: no s'ha trobat l'ordre
mkCSGB2312: opdracht niet gevonden
mkCSGB2312: parancs nem található
mkCSGB2312: perintah tidak ditemukan
mkCSGB2312: príkaz nenájdený
mkCSGB2312: příkaz nenalezen
mkCSGB2312: команда не найдена
mkCSGB2312: командата не е открита
mkCSGB2312: 命令找不到
mkCSGB2312: コマンドが見つかりません