alpinef: 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/alpinef - from package: alpine

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

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