help2txt: 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/share/gfxboot/bin/help2txt - from package: gfxboot-dev

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

Error in other languages:
help2txt: bevel nie gevind nie
help2txt: comandă negăsită
help2txt: comando não encontrado
help2txt: commande introuvable
help2txt: command not found
help2txt: käsku ei ole
help2txt: không tìm thấy lệnh
help2txt: komanda nerasta
help2txt: Kommando nicht gefunden.
help2txt: kommandot finns inte
help2txt: komut yok
help2txt: nie znaleziono polecenia
help2txt: níor aimsíodh an t-ordú
help2txt: no se encontró la orden
help2txt: no s'ha trobat l'ordre
help2txt: opdracht niet gevonden
help2txt: parancs nem található
help2txt: perintah tidak ditemukan
help2txt: príkaz nenájdený
help2txt: příkaz nenalezen
help2txt: команда не найдена
help2txt: командата не е открита
help2txt: 命令找不到
help2txt: コマンドが見つかりません