drfindid: 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

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/drfindid - from package: emboss

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