srvderive: 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/share/torrus/bin/srvderive - from package: torrus-common

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