icegridnode: 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/icegridnode - from package: ice35-services

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

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