dpm-delreplica: 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/dpm-delreplica - from package: dpm-contrib-admintools

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

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