frommac: 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
/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/frommac - from package: macutils

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