html2haml: 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/html2haml - from package: ruby-html2haml

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

Error in other languages:
html2haml: bevel nie gevind nie
html2haml: comandă negăsită
html2haml: comando não encontrado
html2haml: commande introuvable
html2haml: command not found
html2haml: käsku ei ole
html2haml: không tìm thấy lệnh
html2haml: komanda nerasta
html2haml: Kommando nicht gefunden.
html2haml: kommandot finns inte
html2haml: komut yok
html2haml: nie znaleziono polecenia
html2haml: níor aimsíodh an t-ordú
html2haml: no se encontró la orden
html2haml: no s'ha trobat l'ordre
html2haml: opdracht niet gevonden
html2haml: parancs nem található
html2haml: perintah tidak ditemukan
html2haml: príkaz nenájdený
html2haml: příkaz nenalezen
html2haml: команда не найдена
html2haml: командата не е открита
html2haml: 命令找不到
html2haml: コマンドが見つかりません