spacenavd: 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 CentOS possible default full paths are:

/usr/bin/spacenavd - from package: spacenavd

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/spacenavd - from package: spacenavd

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

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