pdlzip: 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 Debian possible default full paths are:

/usr/bin/pdlzip - from package: pdlzip

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

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