scomes: 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/sbin/scomes - from package: tuned-utils

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

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