moverrd.sh: 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/lib/xymon/server/bin/moverrd.sh - from package: xymon

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