icestormadmin: 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/icestormadmin - from package: ice35-services

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

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