smash_megafile: 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/smash_megafile - from package: geda-utils

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

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