pulse: 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/pulse - from package: piranha

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

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