huffman: 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:

/var/lib/wims/public_html/bin/huffman - from package: wims

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

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