xtrkcad: 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/xtrkcad - from package: xtrkcad

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

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