ceph_radosacl: 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/ceph_radosacl - from package: ceph-test

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

On Debian possible default full paths are:

/usr/lib/ceph/bin/ceph_radosacl - from package: ceph-test

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