repomapper: 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/repomapper - from package: reposurgeon

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

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