make-cadir: 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 Debian possible default full paths are:

/usr/bin/make-cadir - from package: easy-rsa

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

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