dxfsphere: 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/dxfsphere - from package: dime

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

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