mkdic: 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/mkdic - from package: Canna

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

On Debian possible default full paths are:

/usr/bin/mkdic - from package: canna-utils

You may install the required package with command apt-get install {package}

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