flvstreamer: 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 Debian possible default full paths are:

/usr/bin/flvstreamer - from package: flvstreamer

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

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