cdpr: 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/cdpr - from package: cdpr

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

On Debian possible default full paths are:

/usr/sbin/cdpr - from package: cdpr

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

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