ltdbtool: 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/ltdbtool - from package: ctdb

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

On Debian possible default full paths are:

/usr/bin/ltdbtool - from package: ctdb

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

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