minclookup: 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/minclookup - from package: minc-tools

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

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