glacier2router: 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/glacier2router - from package: ice35-services

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

Error in other languages:
glacier2router: bevel nie gevind nie
glacier2router: comandă negăsită
glacier2router: comando não encontrado
glacier2router: commande introuvable
glacier2router: command not found
glacier2router: käsku ei ole
glacier2router: không tìm thấy lệnh
glacier2router: komanda nerasta
glacier2router: Kommando nicht gefunden.
glacier2router: kommandot finns inte
glacier2router: komut yok
glacier2router: nie znaleziono polecenia
glacier2router: níor aimsíodh an t-ordú
glacier2router: no se encontró la orden
glacier2router: no s'ha trobat l'ordre
glacier2router: opdracht niet gevonden
glacier2router: parancs nem található
glacier2router: perintah tidak ditemukan
glacier2router: príkaz nenájdený
glacier2router: příkaz nenalezen
glacier2router: команда не найдена
glacier2router: командата не е открита
glacier2router: 命令找不到
glacier2router: コマンドが見つかりません