scribus: 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 CentOS possible default full paths are:

/usr/bin/scribus - from package: scribus

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/scribus - from package: scribus

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

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