sestatus: 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/sestatus - from package: policycoreutils

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

On Debian possible default full paths are:

/usr/sbin/sestatus - from package: policycoreutils

You may install the required package with command apt-get install {package}

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