bonobo-slay: 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/bonobo-slay - from package: libbonobo2-bin

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