cpan2deb: 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/cpan2deb - from package: dh-make-perl

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

Error in other languages:
cpan2deb: bevel nie gevind nie
cpan2deb: comandă negăsită
cpan2deb: comando não encontrado
cpan2deb: commande introuvable
cpan2deb: command not found
cpan2deb: käsku ei ole
cpan2deb: không tìm thấy lệnh
cpan2deb: komanda nerasta
cpan2deb: Kommando nicht gefunden.
cpan2deb: kommandot finns inte
cpan2deb: komut yok
cpan2deb: nie znaleziono polecenia
cpan2deb: níor aimsíodh an t-ordú
cpan2deb: no se encontró la orden
cpan2deb: no s'ha trobat l'ordre
cpan2deb: opdracht niet gevonden
cpan2deb: parancs nem található
cpan2deb: perintah tidak ditemukan
cpan2deb: príkaz nenájdený
cpan2deb: příkaz nenalezen
cpan2deb: команда не найдена
cpan2deb: командата не е открита
cpan2deb: 命令找不到
cpan2deb: コマンドが見つかりません