roffit: 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/roffit - from package: roffit

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