repotrack: 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/repotrack - from package: yum-utils

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

On Debian possible default full paths are:

/usr/bin/repotrack - from package: yum-utils

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

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