cdr2raw: 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/cdr2raw - from package: libcdr-tools

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

Error in other languages:
cdr2raw: bevel nie gevind nie
cdr2raw: comandă negăsită
cdr2raw: comando não encontrado
cdr2raw: commande introuvable
cdr2raw: command not found
cdr2raw: käsku ei ole
cdr2raw: không tìm thấy lệnh
cdr2raw: komanda nerasta
cdr2raw: Kommando nicht gefunden.
cdr2raw: kommandot finns inte
cdr2raw: komut yok
cdr2raw: nie znaleziono polecenia
cdr2raw: níor aimsíodh an t-ordú
cdr2raw: no se encontró la orden
cdr2raw: no s'ha trobat l'ordre
cdr2raw: opdracht niet gevonden
cdr2raw: parancs nem található
cdr2raw: perintah tidak ditemukan
cdr2raw: príkaz nenájdený
cdr2raw: příkaz nenalezen
cdr2raw: команда не найдена
cdr2raw: командата не е открита
cdr2raw: 命令找不到
cdr2raw: コマンドが見つかりません