rspec-puppet-init: 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/rspec-puppet-init - from package: ruby-rspec-puppet

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

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