kfloppy: 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/kfloppy - from package: kdeutils

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

On Debian possible default full paths are:

/usr/bin/kfloppy - from package: kfloppy

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

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