get-wings-flags: 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/get-wings-flags - from package: WINGs-devel

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

On Debian possible default full paths are:

/usr/bin/get-wings-flags - from package: libwings-dev

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

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