avimake: 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/avimake - from package: libavifile-0.7-bin

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