input-kbd: 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 Debian possible default full paths are:

/usr/bin/input-kbd - from package: input-utils

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

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