mrpt-perfdata2html: 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/mrpt-perfdata2html - from package: mrpt-apps

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

Error in other languages:
mrpt-perfdata2html: bevel nie gevind nie
mrpt-perfdata2html: comandă negăsită
mrpt-perfdata2html: comando não encontrado
mrpt-perfdata2html: commande introuvable
mrpt-perfdata2html: command not found
mrpt-perfdata2html: käsku ei ole
mrpt-perfdata2html: không tìm thấy lệnh
mrpt-perfdata2html: komanda nerasta
mrpt-perfdata2html: Kommando nicht gefunden.
mrpt-perfdata2html: kommandot finns inte
mrpt-perfdata2html: komut yok
mrpt-perfdata2html: nie znaleziono polecenia
mrpt-perfdata2html: níor aimsíodh an t-ordú
mrpt-perfdata2html: no se encontró la orden
mrpt-perfdata2html: no s'ha trobat l'ordre
mrpt-perfdata2html: opdracht niet gevonden
mrpt-perfdata2html: parancs nem található
mrpt-perfdata2html: perintah tidak ditemukan
mrpt-perfdata2html: príkaz nenájdený
mrpt-perfdata2html: příkaz nenalezen
mrpt-perfdata2html: команда не найдена
mrpt-perfdata2html: командата не е открита
mrpt-perfdata2html: 命令找不到
mrpt-perfdata2html: コマンドが見つかりません