Bonds: 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/Bonds - from package: quantlib-examples

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

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