astribank_tool: 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/sbin/astribank_tool - from package: dahdi

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

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