rcceph-radosgw: 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/rcceph-radosgw - from package: ceph-radosgw

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

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