ompl_benchmark_statistics: 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
/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/ompl_benchmark_statistics - from package: ompl-demos

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