mysqlhotcopy: 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/mysqlhotcopy - from package: mysql55w-server
/usr/bin/mysqlhotcopy - from package: mysql-server

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

On Debian possible default full paths are:

/usr/bin/mysqlhotcopy - from package: mariadb-server-10.0
/usr/bin/mysqlhotcopy - from package: mysql-server-5.5

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

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