kbd_mode: 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:

/bin/kbd_mode - from package: kbd

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

On Debian possible default full paths are:

/bin/kbd_mode - from package: kbd

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

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