fixuifiles: 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/fixuifiles - from package: kdesdk

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

On Debian possible default full paths are:

/usr/bin/fixuifiles - from package: kdesdk-scripts

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

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