wings3d: 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 Debian possible default full paths are:

/usr/bin/wings3d - from package: wings3d

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

Error in other languages:
wings3d: bevel nie gevind nie
wings3d: comandă negăsită
wings3d: comando não encontrado
wings3d: commande introuvable
wings3d: command not found
wings3d: käsku ei ole
wings3d: không tìm thấy lệnh
wings3d: komanda nerasta
wings3d: Kommando nicht gefunden.
wings3d: kommandot finns inte
wings3d: komut yok
wings3d: nie znaleziono polecenia
wings3d: níor aimsíodh an t-ordú
wings3d: no se encontró la orden
wings3d: no s'ha trobat l'ordre
wings3d: opdracht niet gevonden
wings3d: parancs nem található
wings3d: perintah tidak ditemukan
wings3d: príkaz nenájdený
wings3d: příkaz nenalezen
wings3d: команда не найдена
wings3d: командата не е открита
wings3d: 命令找不到
wings3d: コマンドが見つかりません