glance: 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/glance - from package: python-glanceclient

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

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