ioprofiler-trace: 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/ioprofiler-trace - from package: ioapps

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

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