acpibin: 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/acpibin - from package: acpica-tools

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