loadmeter: 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/loadmeter - from package: loadmeter

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