sysprof: 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 CentOS possible default full paths are:

/usr/bin/sysprof - from package: sysprof

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/sysprof - from package: sysprof

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

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