forge: 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/forge - from package: snap

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

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