minccopy: 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/minccopy - from package: minc-tools

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

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