log2ndo: 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/sbin/log2ndo - from package: ndoutils-common

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

Error in other languages:
log2ndo: bevel nie gevind nie
log2ndo: comandă negăsită
log2ndo: comando não encontrado
log2ndo: commande introuvable
log2ndo: command not found
log2ndo: käsku ei ole
log2ndo: không tìm thấy lệnh
log2ndo: komanda nerasta
log2ndo: Kommando nicht gefunden.
log2ndo: kommandot finns inte
log2ndo: komut yok
log2ndo: nie znaleziono polecenia
log2ndo: níor aimsíodh an t-ordú
log2ndo: no se encontró la orden
log2ndo: no s'ha trobat l'ordre
log2ndo: opdracht niet gevonden
log2ndo: parancs nem található
log2ndo: perintah tidak ditemukan
log2ndo: príkaz nenájdený
log2ndo: příkaz nenalezen
log2ndo: команда не найдена
log2ndo: командата не е открита
log2ndo: 命令找不到
log2ndo: コマンドが見つかりません