iodine: 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 CentOS possible default full paths are:

/usr/sbin/iodine - from package: iodine

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/iodine - from package: iodine

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

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