update_routes: 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/update_routes - from package: ax25mail-utils

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

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