fp2bit: 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/fp2bit - from package: fpgatools

You may install the required package with command apt-get install {package}
Error in other languages:
fp2bit: bevel nie gevind nie
fp2bit: comandă negăsită
fp2bit: comando não encontrado
fp2bit: commande introuvable
fp2bit: command not found
fp2bit: käsku ei ole
fp2bit: không tìm thấy lệnh
fp2bit: komanda nerasta
fp2bit: Kommando nicht gefunden.
fp2bit: kommandot finns inte
fp2bit: komut yok
fp2bit: nie znaleziono polecenia
fp2bit: níor aimsíodh an t-ordú
fp2bit: no se encontró la orden
fp2bit: no s'ha trobat l'ordre
fp2bit: opdracht niet gevonden
fp2bit: parancs nem található
fp2bit: perintah tidak ditemukan
fp2bit: príkaz nenájdený
fp2bit: příkaz nenalezen
fp2bit: команда не найдена
fp2bit: командата не е открита
fp2bit: 命令找不到
fp2bit: コマンドが見つかりません