gts-config: 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/gts-config - from package: libgts-bin

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

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