pdcp: 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/pdcp - from package: pdsh

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

On Debian possible default full paths are:

/usr/bin/pdcp - from package: pdsh

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

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