sconsign: 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/sconsign - from package: scons

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

On Debian possible default full paths are:

/usr/bin/sconsign - from package: scons

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

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