kmk_echo: 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_echo - from package: kBuild

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

On Debian possible default full paths are:

/usr/bin/kmk_echo - from package: kBuild

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

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