lamhalt: 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/lamhalt - from package: lam-runtime

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

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