editfilenames: 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/editfilenames - from package: crip

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