setcifsacl: 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/setcifsacl - from package: cifs-utils

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

On Debian possible default full paths are:

/usr/bin/setcifsacl - from package: cifs-utils

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