scons: 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/scons - from package: scons

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

On Debian possible default full paths are:

/usr/bin/scons - from package: scons

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

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