acpixtract-acpica: 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/acpixtract-acpica - from package: acpica-tools

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

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