dcmprscp: command not found

Have You tried accessing the binary with the full path?

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/dcmprscp - from package: dcmtk

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