gts2dxf: 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/gts2dxf - from package: libgts-bin

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

Error in other languages:
gts2dxf: bevel nie gevind nie
gts2dxf: comandă negăsită
gts2dxf: comando não encontrado
gts2dxf: commande introuvable
gts2dxf: command not found
gts2dxf: käsku ei ole
gts2dxf: không tìm thấy lệnh
gts2dxf: komanda nerasta
gts2dxf: Kommando nicht gefunden.
gts2dxf: kommandot finns inte
gts2dxf: komut yok
gts2dxf: nie znaleziono polecenia
gts2dxf: níor aimsíodh an t-ordú
gts2dxf: no se encontró la orden
gts2dxf: no s'ha trobat l'ordre
gts2dxf: opdracht niet gevonden
gts2dxf: parancs nem található
gts2dxf: perintah tidak ditemukan
gts2dxf: príkaz nenájdený
gts2dxf: příkaz nenalezen
gts2dxf: команда не найдена
gts2dxf: командата не е открита
gts2dxf: 命令找不到
gts2dxf: コマンドが見つかりません