klavaro: 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/klavaro - from package: klavaro

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