quantlib-benchmark: 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/quantlib-benchmark - from package: libquantlib0-dev

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

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