sxconsole: 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/sxconsole - from package: sx

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

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