CallableBonds: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/CallableBonds - from package: quantlib-examples

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