klog: 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 Debian possible default full paths are:

/usr/bin/klog - from package: klog

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