dsrdump: 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/dsrdump - from package: dcmtk

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

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