cvm-mysql: 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 Debian possible default full paths are:

/usr/bin/cvm-mysql - from package: cvm-mysql

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

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