unrooted: 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/unrooted - from package: njplot

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

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