boom: 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/boom - from package: alliance

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

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