biosed: 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/biosed - from package: emboss

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

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