dmlite-shell: 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/dmlite-shell - from package: dmlite-shell

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

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