wondershaper: 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/sbin/wondershaper - from package: wondershaper

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

On Debian possible default full paths are:

/sbin/wondershaper - from package: wondershaper

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

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