gnunet-testbed-profiler: 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/gnunet-testbed-profiler - from package: gnunet

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

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