fl-record: 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 Debian possible default full paths are:

/usr/bin/fl-record - from package: funkload

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