getfacl: 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/getfacl - from package: acl

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

On Debian possible default full paths are:

/usr/bin/getfacl - from package: acl
/bin/getfacl - from package: acl

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