django-lint: 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/django-lint - from package: django-lint

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

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