django-admin: 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-admin - from package: Django14

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

On Debian possible default full paths are:

/usr/bin/django-admin - from package: python-django-common

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

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