caml2html: 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/caml2html - from package: caml2html

You may install the required package with command apt-get install {package}
Error in other languages:
caml2html: bevel nie gevind nie
caml2html: comandă negăsită
caml2html: comando não encontrado
caml2html: commande introuvable
caml2html: command not found
caml2html: käsku ei ole
caml2html: không tìm thấy lệnh
caml2html: komanda nerasta
caml2html: Kommando nicht gefunden.
caml2html: kommandot finns inte
caml2html: komut yok
caml2html: nie znaleziono polecenia
caml2html: níor aimsíodh an t-ordú
caml2html: no se encontró la orden
caml2html: no s'ha trobat l'ordre
caml2html: opdracht niet gevonden
caml2html: parancs nem található
caml2html: perintah tidak ditemukan
caml2html: príkaz nenájdený
caml2html: příkaz nenalezen
caml2html: команда не найдена
caml2html: командата не е открита
caml2html: 命令找不到
caml2html: コマンドが見つかりません