funtable: 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/funtable - from package: funtools

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

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