rasterlite_topmost: 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
/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/rasterlite_topmost - from package: rasterlite-bin

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