soscleaner: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/soscleaner - from package: soscleaner

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