mvdic: command not found

Have You tried accessing the binary with the full path?

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/mvdic - from package: Canna

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

On Debian possible default full paths are:

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

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