speedometer: 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

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/speedometer - from package: speedometer

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