icehelp-experimental: 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/icehelp-experimental - from package: icewm-experimental

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

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