mif2rtf: 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/mif2rtf - from package: sdf

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

Error in other languages:
mif2rtf: bevel nie gevind nie
mif2rtf: comandă negăsită
mif2rtf: comando não encontrado
mif2rtf: commande introuvable
mif2rtf: command not found
mif2rtf: käsku ei ole
mif2rtf: không tìm thấy lệnh
mif2rtf: komanda nerasta
mif2rtf: Kommando nicht gefunden.
mif2rtf: kommandot finns inte
mif2rtf: komut yok
mif2rtf: nie znaleziono polecenia
mif2rtf: níor aimsíodh an t-ordú
mif2rtf: no se encontró la orden
mif2rtf: no s'ha trobat l'ordre
mif2rtf: opdracht niet gevonden
mif2rtf: parancs nem található
mif2rtf: perintah tidak ditemukan
mif2rtf: príkaz nenájdený
mif2rtf: příkaz nenalezen
mif2rtf: команда не найдена
mif2rtf: командата не е открита
mif2rtf: 命令找不到
mif2rtf: コマンドが見つかりません