repro: 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/repro - from package: resiprocate-repro

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

On Debian possible default full paths are:

/usr/sbin/repro - from package: repro

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

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