monkeysphere-host: 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 CentOS possible default full paths are:

/usr/sbin/monkeysphere-host - from package: monkeysphere

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/monkeysphere-host - from package: monkeysphere

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

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