PolyGUI2.7: 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/PolyGUI2.7 - from package: polybori-gui

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

Error in other languages:
PolyGUI2.7: bevel nie gevind nie
PolyGUI2.7: comandă negăsită
PolyGUI2.7: comando não encontrado
PolyGUI2.7: commande introuvable
PolyGUI2.7: command not found
PolyGUI2.7: käsku ei ole
PolyGUI2.7: không tìm thấy lệnh
PolyGUI2.7: komanda nerasta
PolyGUI2.7: Kommando nicht gefunden.
PolyGUI2.7: kommandot finns inte
PolyGUI2.7: komut yok
PolyGUI2.7: nie znaleziono polecenia
PolyGUI2.7: níor aimsíodh an t-ordú
PolyGUI2.7: no se encontró la orden
PolyGUI2.7: no s'ha trobat l'ordre
PolyGUI2.7: opdracht niet gevonden
PolyGUI2.7: parancs nem található
PolyGUI2.7: perintah tidak ditemukan
PolyGUI2.7: príkaz nenájdený
PolyGUI2.7: příkaz nenalezen
PolyGUI2.7: команда не найдена
PolyGUI2.7: командата не е открита
PolyGUI2.7: 命令找不到
PolyGUI2.7: コマンドが見つかりません