drfindformat: 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/drfindformat - from package: emboss

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

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