crm_attribute: 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/crm_attribute - from package: pacemaker

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