bez2mesh: 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/bez2mesh - from package: geomview

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

Error in other languages:
bez2mesh: bevel nie gevind nie
bez2mesh: comandă negăsită
bez2mesh: comando não encontrado
bez2mesh: commande introuvable
bez2mesh: command not found
bez2mesh: käsku ei ole
bez2mesh: không tìm thấy lệnh
bez2mesh: komanda nerasta
bez2mesh: Kommando nicht gefunden.
bez2mesh: kommandot finns inte
bez2mesh: komut yok
bez2mesh: nie znaleziono polecenia
bez2mesh: níor aimsíodh an t-ordú
bez2mesh: no se encontró la orden
bez2mesh: no s'ha trobat l'ordre
bez2mesh: opdracht niet gevonden
bez2mesh: parancs nem található
bez2mesh: perintah tidak ditemukan
bez2mesh: príkaz nenájdený
bez2mesh: příkaz nenalezen
bez2mesh: команда не найдена
bez2mesh: командата не е открита
bez2mesh: 命令找不到
bez2mesh: コマンドが見つかりません