bloom-export-upstream: 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-export-upstream - from package: python-bloom

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

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