btedit: 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/btedit - from package: lifelines

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