qpid-stat: 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/bin/qpid-stat - from package: qpid-tools

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