setup: 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/setup - from package: setuptool
/usr/sbin/setup - from package: setuptool

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

On Debian possible default full paths are:

/usr/share/logidee-tools/bin/setup - from package: logidee-tools

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

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