sfcbd: 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
/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/sfcbd - from package: sblim-sfcb

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