mia-wavelettrans: 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/mia-wavelettrans - from package: mia-tools

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