findscu: 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/findscu - from package: dcmtk

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

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