gigolo: 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/gigolo - from package: gigolo

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

On Debian possible default full paths are:

/usr/bin/gigolo - from package: gigolo

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

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