kbtin: 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/kbtin - from package: kbtin

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