fixwfwps: command not found

Have You tried accessing the binary with the full path?

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/fixwfwps - from package: psutils-perl

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

On Debian possible default full paths are:

/usr/bin/fixwfwps - from package: psutils

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