decode-vaio: 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/decode-vaio - from package: i2c-tools

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

On Debian possible default full paths are:

/usr/bin/decode-vaio - from package: i2c-tools

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

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