mc-tool: 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/mc-tool - from package: telepathy-mission-control-5

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

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