sgw_policy_routing_setup.sh: 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/sgw_policy_routing_setup.sh - from package: olsrd

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

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