mobyle-setsid: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/mobyle-setsid - from package: mobyle-utils

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