kmk: 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/kmk - from package: kBuild

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

On Debian possible default full paths are:

/usr/bin/kmk - from package: kBuild

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

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