izchat: 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/izchat - from package: lowpan-tools

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

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