gts2oogl: 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/gts2oogl - from package: libgts-bin

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

Error in other languages:
gts2oogl: bevel nie gevind nie
gts2oogl: comandă negăsită
gts2oogl: comando não encontrado
gts2oogl: commande introuvable
gts2oogl: command not found
gts2oogl: käsku ei ole
gts2oogl: không tìm thấy lệnh
gts2oogl: komanda nerasta
gts2oogl: Kommando nicht gefunden.
gts2oogl: kommandot finns inte
gts2oogl: komut yok
gts2oogl: nie znaleziono polecenia
gts2oogl: níor aimsíodh an t-ordú
gts2oogl: no se encontró la orden
gts2oogl: no s'ha trobat l'ordre
gts2oogl: opdracht niet gevonden
gts2oogl: parancs nem található
gts2oogl: perintah tidak ditemukan
gts2oogl: príkaz nenájdený
gts2oogl: příkaz nenalezen
gts2oogl: команда не найдена
gts2oogl: командата не е открита
gts2oogl: 命令找不到
gts2oogl: コマンドが見つかりません