monkeysphere: 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/bin/monkeysphere - from package: monkeysphere

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

On Debian possible default full paths are:

/usr/bin/monkeysphere - from package: monkeysphere

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

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