rastrip: 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/rastrip - from package: argus-client

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

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