parrot-nqp: 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/bin/parrot-nqp - from package: parrot-devel

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

On Debian possible default full paths are:

/usr/bin/parrot-nqp - from package: parrot-devel

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

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