fixwwps: 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/fixwwps - from package: psutils-perl

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

On Debian possible default full paths are:

/usr/bin/fixwwps - from package: psutils

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

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