gdcmraw: 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/gdcmraw - from package: libgdcm-tools

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

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