iat: 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/iat - from package: iat

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

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