bloom-release: 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/bin/bloom-release - from package: python-bloom

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

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