wbox: 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 CentOS possible default full paths are:

/usr/bin/wbox - from package: wbox

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

On Debian possible default full paths are:

/usr/bin/wbox - from package: wbox

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