efingerd: 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/sbin/efingerd - from package: efingerd

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