wav2swf: 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/wav2swf - from package: swftools

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

Error in other languages:
wav2swf: bevel nie gevind nie
wav2swf: comandă negăsită
wav2swf: comando não encontrado
wav2swf: commande introuvable
wav2swf: command not found
wav2swf: käsku ei ole
wav2swf: không tìm thấy lệnh
wav2swf: komanda nerasta
wav2swf: Kommando nicht gefunden.
wav2swf: kommandot finns inte
wav2swf: komut yok
wav2swf: nie znaleziono polecenia
wav2swf: níor aimsíodh an t-ordú
wav2swf: no se encontró la orden
wav2swf: no s'ha trobat l'ordre
wav2swf: opdracht niet gevonden
wav2swf: parancs nem található
wav2swf: perintah tidak ditemukan
wav2swf: príkaz nenájdený
wav2swf: příkaz nenalezen
wav2swf: команда не найдена
wav2swf: командата не е открита
wav2swf: 命令找不到
wav2swf: コマンドが見つかりません