perl-nocem: 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/lib/news/bin/perl-nocem - from package: inn2

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

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